All countries

There are international SIM cards on the market offering worldwide data roaming or at least in major regions. Their offers are collected here in this all countries section. Their data rates are often more expensive than on the national level. So always compare with local SIM cards and roaming offers in your country. Although you won't save much using these cards, they may be a good option for frequent travellers and people travelling through multiple countries. Many of these products are still overpriced, but rates are slowly coming down. Currently, the cheapest products come from Russia.

For travel combo packages with a Wi-Fi hotspot rental or purchase combined with a worldwide data plan check this other article here.

PART 1: Worldwide Data SIM Cards
The data SIM-only approach has the main advantage, that you can use your own gear. You don't need to buy or rent and learn how to handle another device. But you need to be sure, that your device works on the frequencies employed in this country. So check compatibility of your mobile with the bands offered in your destination before you start your journey. Compared to offers that include a WiFi router they are harder to share between devices and are priced higher for data than WiFi combo plans, for which you'll have to pay extra for the hardware.

More than half of all international roaming SIM cards are based on just three platforms: All three platforms release many copies and clones under different brands and names geared for slightly different markets. Please understand that we only feature the cheapest or most interesting offers amongst them. The other brands are only mentioned shortly with links for you, if you want to know more.
 * an Estonian platform with TravelSim, AirBalticCard and others
 * a Jersey-based platform on JT Telecom with an "UK" number, that is in fact from Jersey
 * on the Naka platform based on this MVNE from Switzerland

TravelSim
TravelSim is one of the oldest and most established companies to have launched an international prepaid card, using an Estonian (+372) number. It has voice and text service in about 196 countries and proved to be quite reliable.

The only problem has been its very high cost for data. If you travel a lot and always go to different countries it can be much more comfortable to use only one prepaid number which can be used (almost) worldwide.

In 2016 they lowered some data prices and scrapped their data card. They now offer only one product for voice, text and data on 2G, 3G, no 4G/LTE with lower rates, but a higher start-up price.

Start-up price and availability
The TravelSim card is only available online on their website with worldwide free shipping in these starters: So the starter is 11 € with a package included or 25 € with credit. It can be reloaded by international credit cards on your TravelSim online account and stays valid for 2 years after the last top-up. A SIM card replacement costs 10 €.
 * TravelSIM card with 1 GB pack in zone 1: 29 €
 * TravelSIM card with 5 GB pack for Russia, China and Northern Countries: 36 €
 * TravelSIM card with 1 GB pack in zones 1 and 2: 60 €
 * TravelSIM card with 50 € credit: 75 €

Credit lasts for one year from the last top-up and the SIM card will stay alive as long as it's recharged once a year.

Unlike voice and text, data is available in about 100 countries on 2G and 3G only. The rates range from crazy 0.19 € to 10 € per MB depending on the country. The price model is split into 2 schemes: a pay-as-you-go rate and package rates.

Pay-as-you-go rate
It's the default rate when no package is activated. Rates are charged in 1 KB or 10 KB increments and the most important countries are 0.19 EUR per MB: in the most countries of Europe, North America, China, Egypt, Korea, Russia, Thailand, Turkey. But some single countries or operators can be up to 10 € per MB. For details see new price guide (click on data rates)

Data packages
Furthermore, they offer these new data roaming packs according to three zones: To activate a package, got to this website.
 * Zone 1: Austria, Belgium, Brazil, Bulgaria, Chile, China, Colombia, Costa Rica, Croatia, Cyprus, Denmark, Estonia, Faeroe Islands, Finland, France, Germany, Gibraltar, Greece, Greenland, Guatemala, Honduras, Hong Kong, Hungary, Iceland, Israel, Italy, Latvia, Liechtenstein, Lithuania, Luxembourg, Malaysia, Malta, Mexico, Netherlands, Nicaragua, Norway, Paraguay, Poland, Portugal, Puerto Rico, Romania, Russia, Singapore, Slovakia, Slovenia, Spain, Sweden, Switzerland, Thailand, UK, Uruguay, USA
 * Zone 2: Argentina, Armenia, Australia, Belarus, Canada, Czech Republic, Georgia, Guadeloupe, Indonesia, Ireland, Korea (South), Montenegro, Panama, Peru, Philippines, San Marino, Saudi Arabia, South Africa, Tajikistan, Turkey
 * Zone 3: Anguilla, Antigua and Barbuda, Aruba, Azerbaijan, Barbados, Bermuda, British Virgin Islands, Cayman Islands, Dominica, Ecuador, Egypt, El Salvador, Grenada, Haiti, India, Jamaica, Japan, Kazakhstan, Kuwait, Macau, Macedonia, Moldova, Nepal, Netherlands Antilles, New Zealand, Nigeria, Qatar, Serbia, Sri Lanka, St.Kitts, St.Lucia, St.Vincent / Grenada, Suriname, Taiwan, Turk & Caicos Isl., Ukraine, UAE

Zone 3 package includes zones 1 and 2, zone 2 package includes zone 1. They offer these special packages for certain countries:


 * for the EU: 5 GB for 30 days at 39 €
 * for the Russia: 5 GB for 30 days at 26 €
 * for the Russia: 1 GB, 100 mins, 100 SMS for 30 days at 49 €

Only one package can be activated at once. A data package is activated as soon as the order through USSD-command is made (even in the country not listed above). The package cost is taken immediately. The package is completed either when the ordered amount of data is used, or when duration time is reached. It's possible to order a new data package, when the data amount has been finished, despite the duration time of this package. If the amount of data hasn’t been used, the client can't order a new package.

More Info
The rates are above the prices of average national data SIM cards. It depends on how much you are willing to pay extra for an international solution. Always compare the TravelSIM rates with the roaming rates of other mobile providers.

As calling an Estonian mobile number can be expensive TravelSIM made a deal with the VoIP providers Skype and Viber that can be activated by *146*711# for free. When the feature is activated, Skype and Viber users can call the TravelSIM number for free using special dialing format +372 800 XXXXXXXX, where XXXXXXXX is a TravelSIM number without the prefix 372. The call is free for the Skype and Viber user, but the TravelSIM user still has to pay for an incoming call. TravelSIM is copied into many different clones like OneSimCard, XXSim, airBaltic mobile or LemonSIM. These products may offer the same or a very similar portfolio. Some have severe restrictions like XXSim or more options like airBaltic mobile mentioned below.
 * APN: send.ee
 * Username: number of your Travelsim: 3725......
 * Website: www.travelsim.com

OneSimCard
On the other side of the Atlantic OneSimCard by Belmont Telecom Inc. offers a very similar product. Its "data & roam" SIM works in 160+ countries, is also based on an Estonian number (+372) which is added by a US or Canadian number and has essentially the same rates like TravelSIM. Unlike TravelSIM OneSIMCard doesn't expire as long as you make any activity every 2 years. However, loaded funds expire 10 months after your last recharge, unless you top up again.

The main difference is the underlying currency of US$ instead of Euro. The SIM costs $29.95 with free shipping in the US and the tariff table is identical to TravelSIM: The PAYG rate of 0.19€ is $0.25, 0.39€ is $0.50 going up to 20€ or $25. They also sell totally the same data packages for the equivalent rates in US$. Although data of some countries are not counted twice in the packages like with TravelSIM, they simply cut in half the allowances of the (2x) countries, which is the same in the end. For more info see TravelSIM above or check their website. If you live in America, it might be the closer choice for you to get the same SIM plan.
 * APN: apn (no joke, but only for the OneSimCard data & roam)
 * Website: http://www.onesimcard.com

XXSim
Like TravelSim XXSim is a reliable international SIM card based on an Estonian (+372) number which has been around for years. In fact, both products use the same platform. Voice is available in about 190 countries and data in a few less. While TravelSim has issued a data card, XXSim has not (yet). XXSim offers the exact same data prices given above at the pay-as-you-go-rate, but they don't offer any packages though.

That's why XXSim can't be recommended. First you pay the premium of an international SIM card, but you don't get the discounts of TravelSim. Charging 0.19 EUR per MB within the EU, you are almost at the price cap for any SIM card sold in the EU with roaming data. So for many users the roaming option of your home carrier is the more convenient choice at the same price, while TravelSim is the cheaper alternative if you want to buy an international card.
 * APN: send.ee
 * Website: http://xxsim.com/

airBalticcard mobile
The airBalticcard Mobile International SIM card of the Baltic airline is another product with an Estonian number (+372). It's based on the same Estonian SIM platform as Travel SIM, XXSim or OneSimCard giving roaming data in 196 countries. They have been around since 2006 calls are made through call-back procedure, and mobile data on 2G and 3G, no 4G/LTE are offered.

Availability
Their SIM card is sold in all airBaltic flights and online with worldwide free delivery in all three sizes: Its loaded credit doesn't expire as long as the SIM is being used, but the if the SIM is not used for 2 years or balance not refilled, it will be deactivated.
 * for € 10 without balance
 * for € 35 with € 30 credit
 * for € 50 with the same credit

Top-ups can be made online by credit card or by refill cards sold in airBaltic flights and ticket offices. Check balance by *146*099#.

Data rates
Their default rate is the same as TravelSIM, OneSIM or XXSim (see above). In about 150 countries worldwide the same packages as TravelSIM (see list at TravelSIM above) are offered and further special packages are offered additional to TravelSIM.

Check this list for details about their offers and how to activate and deactivate the packages. As special offers not mentioned under Travel SIM they offer:
 * 1 GB for 14 days: € 5 valid in Denmark, Estonia, Finland, Latvia, Lithuania, Norway, Russia, Sweden


 * 1 GB for 30 days: € 15 valid in all of the EU, EEA, USA, Russia, Brazil, China, Indonesia, S. Korea, Turkey, Thailand and a few more


 * 5 GB for 30 days: € 26 valid in China, Denmark, Estonia, Greece, Finland, Israel, Latvia, Lithuania, Norway, Russia, Sweden.
 * 5 GB for 30 days: € 39 valid all over the EU and EEA only
 * 1 GB at € 2, 3 GB at € 6, 5 GB at € 10, 10 GB at € 19, all for 30 days valid in Scandinavia and the Baltic States.
 * € 1 valid for 365 days: a per-MB rate of € 0.015 in the EU, EEA, US, China, Russia, Israel, S.Korea, Singapore

More info

 * APN: send.ee
 * Website: http://airbalticcard.com/

Piranha Mobile
Piranha is an international SIM card coming with an US (+1) and an UK (+44) mobile number. It offers prices slightly below TravelSIM based on a pay as you go rate, but higher as no packages are offered.

Start-up price and availability
The Piranha SIM card can be purchased "free" with a £2.50 delivery charge to anywhere in the world. Top ups can be made online with credit card or PayPal starting at £10.

Generally, they offer good rates on voice, text and data, but the rates are as complicated as the technical settings. In some countries, calls are made through a callback procedure.

Reliability

There are user reports online of reliability issues, especially with receiving SMS, as well as the SIM taking an unusually long time to get a working signal when arriving in a new country.

Data rates
For data, they offer roaming in about 140 countries. It is billed in 50 KB increments. Rates differ even in the same country, depending on which local roaming network you are on. Some price examples: Because of different rates for different providers in the same country, be sure to pick the cheapest first and disable automatic network selection, so your device can't switch the roaming networks. Furthermore, Piranha mobile allows you to make calls through VoIP if you install their VoIP app or have a VoIP-router and Wifi connection. No data packages are offered.
 * 0.02 € - 0.08 €/MB: all available EU/EEA networks
 * 0.03 €/MB: USA (T-Mobile)
 * 0.09 €/MB: USA (AT&T), Turkey (Avea, Vodafone)
 * 0.11 €/MB: Australia (Optus, Telstra), Canada (Rogers), China (Unicom), Israel (Orange), Russia (Megafon, Beeline), Thailand (dtac, True), Singapore (Starhub), S.Korea (olleh), South Africa (Vodacom), Switzerland (Salt., Swisscom)
 * 0.11 €/MB: Brazil (vivo), Mexico (Movistar), UAE (du, Etisalat), India (Aircel)
 * 0.23 €/MB: Indonesia (Indosat), Japan (NTT docomo)
 * 0.34 €/MB: Egypt (Etisalat)
 * 1.73 €/MB: Cuba (Cubacel)

Clones
Using openroamer.com APN, there are other offers on the market. They all employ the same technicalities as Piranha Mobile and have only slightly modified rates: Due to increased costs, effective March 2017 the Mobi Passport SIM Service is discontinued. Existing accounts with an active SIM card have been migrated to Piranha Mobile.
 * AeroSip Global SIM: http://www.aerosip.com

More info

 * APN: openroamer.com
 * Website: www.piranha-mobile.com
 * Extensive discussion here
 * [ New thread / discussion http://www.prepaidgsm.net/forum/showthread.php?t=9964 ]
 * [At present Voip working not correctly? ]

KnowRoaming
KnowRoaming is a Canadian start-up with a new approach: They provide a "SIM sticker" that has to be applied to your home SIM. Thus, all calls, texts and data outside of your home market are diverted through the KnowRoaming SIM addon. Their sticker intercepts electrical signals before they go to the regular SIM. If you're in your "home" country it passes everything through. Otherwise it "takes over" and functions as a second SIM. They claim that this sticker will fit over regular, micro and nano SIMs.

As this sticker proved to be too complicated for some, from 2017 they now offer regular triple-size SIM cards too with an UK and US number.

Start-up price and availability
The SIM sticker is only available online with worldwide free shipping. It costs $29.99 with $10 credit and comes with an applicator for micro-, mini- or nano-SIM. They also sell a regular SIM card at $9.99 without credit. The SIM card comes with a free US number, some other countries can be added for pay. The SIM card or sticker can only be managed and reloaded by their app available for Android, iOS and Windows Phone.

Validity
The SIM card does not expire. Only prepaid credit expires after the 15 month of inactivity. Data is available in more than 150 countries and from summer 2017 in 60 countries in 4G/LTE too (see 4G list). The data rates range between $0.15 and $1 per MB depending on the country. Like TravelSIM, the price model is split into two tariff lines: a pay-as-you-go rate and a package rate.

Pay-as-you-go Rate
It's the default rate and the only rate for some countries. Here are some examples:
 * $0.10 per MB: USA
 * $0.15 per MB: all countries of the EU/EEA, Australia, Canada, Singapore, South Africa, South Korea, Switzerland, Turkey

see full prices here. Data seems to be proxied through French servers.
 * $0.20 per MB: Argentina, Hong Kong, India, Israel
 * $0.25 per MB: Brazil, Mexico, UAE
 * $0.30 per MB: China, Russia, Thailand
 * $0.35 per MB: Japan

Data Packages
Furthermore, they offer the following data pack to be activated by app: In their T&Cs they state a FUP, that they can throttle speed to 258 kbps after having reached only 250 MB per day.
 * "Unlimited" data for $7.99 per day. This pack is only valid in about half of their offered countries (for list of countries scroll here).

Free WhatsApp
In 2016 they've added free WhatsApp use to their products. You're not required to buy credit to be able to use this feature. It works in all countries and includes not only sending messages but voice or video calls and send images at no charge as well. The daily limit is set to 100 MB. It might be the better alternative to ChatSIM (see below) for using only WhatsApp on roaming. Please note as the Google Push Messaging is blocked, you will not get notification on incoming messages. You need to periodically check the app to see if there are incoming messages.

More info

 * APN: knowroaming
 * Website: http://www.knowroaming.com
 * Forum discussion here

Slimduet
The sticker technique has been copied by mobile value-added service provider Taisys Technologies and European carrier JOIN Experience who issued a pan-European plan for 39 countries. They call their sticker SIM "Slimduet Card" and combine it with an own app to purchase bundles and manage your plan. More info about their product: https://www.slimduet.net/en

Keepgo
Keepgo is an Israeli-based start-up founded in 2009 with offices around the world. For travelers, it's offering a SIM card preloaded with a data bundle for roaming at selected destinations in 4G/LTE too at very high rates.

Countries and rates
They offer a unified rate in a total of 70+ countries.
 * AMERICA:, Argentina, Brazil, Canada, Chile, Colombia, Costa Rica, Ecuador, El Salvador, Guatamala, Mexico, Nicaragua, Panama, Peru, Puerto Rico, Uruguay, Venezuela, USA.
 * EUROPE: all over the EU/EEA, Switzerland und Turkey.

List of countries and the local roaming networks. In about 50% of the countries 4G/LTE roaming is available.
 * OTHER: Australia, China, Hong Kong, Singapore, Thailand, Israel, South Africa, Egypt.

SIM card is data-only, no voice or texts, but VoIP is possible. Their "Lifetime Data SIM Card" is available for US$ 49 containing 1 GB roaming data. They also sell a mobile WiFi Hotspot router (mifi) including the SIM from above for US$ 99. Package allowance is valid for 1 year. (e.g. if you buy 1 GB package, you can spend it whole year) and data traffic are charged in 1 KB increments. The SIM card is supposed to last a "lifetime".

Availability and refills
You have to order it online on their website in mini, micro or nano size. Shipping is free to 38 countries and payment by credit card. There you can refill the SIM card too. These refills are available: Each refill extends the data validity for 1 year including the unused data on the card at the moment of the refill.
 * 500 MB for $19 (= 3.8c per MB)
 * 1 GB for $35 (= 3.5c per MB)
 * 3 GB for $85 (= 2.8c per MB)
 * 5 GB for $119 (= 2.4c per MB)
 * 10 GB for $219 (= 2.2c per MB)

More info

 * APN: internet.keepgo.com
 * Website: http://www.keepgo.com/

Transatel DataSIM
This SIM card is offered by the Transatel group based in Paris. Their data SIM card can be used in every data device. Recently, they've made a deal with Microsoft to market their product with Windows10. Their SIM covers more than 100 countries so far in 2017.

Availability
You can either choose a SIM card preloaded with initial data credit called "International Data SIM card", which can be used in any of the covered countries, or the international "WiFi hotspot". The international data card comes in different start-up packages to be delivered worldwide (express delivery is extra):
 * for € 25: with € 25 of credit valid for 3 months (incl. free SIM card)
 * for € 50: with € 50 of credit (+ € 5 free bonus) valid for 6 months (incl. free SIM card)
 * for € 100: with € 100 of credit (+ € 15 free bonus) valid for 1 year (incl. free SIM card)
 * they also sell a 3G MiFi/WiFi hotspot (Huawei E5330) for € 74 including € 25 credit for 3 month, or for € 98 with € 55 credit valid for 6 months, or for € 145 including € 115 credit for 1 year.
 * they also sell a 4G MiFi/WiFi hotspot (Huawei E5577 Cs) for € 129 including € 25 credit for 3 month, or for € 153 with € 55 credit valid for 6 months, or for € 200 including € 115 credit for 1 year.
 * all the regional packages (see below) can be combined with the starters too

Recharges
You can top-up online on your personal account using credit cards or PayPal. You can either top-up value that is valid for all countries and can be transformed into packages or a specific pack. Three sizes are offered: The data SIM will be automatically be deactivated 18 months after your last use.
 * €25 valid for 3 months
 * €50 (+ 5 € free bonus) valid for 6 months
 * €100 (+ 15 € free bonus) valid for 12 months

PAYG data rates
In 2017 they offer more than 100 countries mostly in Europe (map of countries and list of operators), some in America, Asia and Africa on a reduced per-MB rate now: Data is on 3G and on 4G/LTE in about 50 countries - for networks see http://www.transatel-datasim.com/data-coverage/.
 * 0.02 € per MB: all EU/EEA countries (excl. Germany)
 * 0.025 € per MB: USA, Canada
 * 0.03 € per MB: Russia, Taiwan, Israel, New Zealand, Macedonia, Serbia, Turkey,
 * 0.04 € per MB: Malaysia, Singapore, South Africa, Switzerland and most networks in the Caribbean
 * 0.06 € per MB: Germany, Cambodia, Ivory Coast, Ukraine,
 * 0.09 € per MB: China, Hong Kong, Thailand, Brazil, Macao, Vietnam, Egypt, Mexico

Regional data bundles
For continents, regions or countries they offer these regional bundles valid in all included regions for 30 days:
 * Europe: € 25 - 2 GB in most of the EU (excl. Germany), but Russia, Ukraine and Turkey too
 * country packs for France, Italy, Spain, Israel and UK: € 15 - 1 GB
 * Asia: € 39 - 1 GB in most Asian countries incl. India and China
 * Best Asia: € 15 - 3 GB in some Asian countries Japan, Laos, Singapore, Taiwan, Thailand, Vietnam
 * America: € 39 - 500 MB in US, Canada and Mexico, but few Latin American countries
 * Oceania: € 19 - 1 GB only in New Zealand, Papua New Guinea and the Solomon Islands
 * Africa: € 39 - 1 GB in only in 6 African countries so far included South Africa
 * Maghreb: €29 - 500MB in Algeria, Egypt, Morocca and Tunisia
 * Carribbean: € 29 - 1 GB all over the Caribbean

More info

 * APN: mobiledata
 * Website: www.transatel-datasim.com

GigSky and Apple SIM
GigSky is an US-American company based in California, which runs a world data SIM with data-only services in about 180 countries so far, but no voice or text available. Data is mostly on 4G/LTE too, which is a plus compared to other SIM cards.

Availability
You can buy a Gigsky data SIM on Amazon.com or Amazon.co.uk with worldwide delivery. Expect 1-30 days for delivery depeding on destination country.

The SIM card is sold for US$ 9.99 or £ 9.99 in mini, micro and nano size and it won't expire. Top-ups are made by credit card through your personal account.

They have lowered prices in 2017 and introduced 5 regional plans, You don't need to purchase an extra bundle for every country visited anymore.

Data Rates
Their 5 regional bundles are for North America, Europe, Asia/Pacific, Latin America and Middle East/Africa. As they don't cover all countries in the region, check their list before: It's recommended to check their pricelist here.

Apple SIM
Apple has teamed up with GigSky for iPads. They sell an Apple SIM configured in WiFi and cellular models in the US and UK and is available for individual purchase at iStore locations in Australia, Canada, France, Germany, Hong Kong, Italy, Japan, the Netherlands, Spain, Sweden, Switzerland, Turkey, UK and US.

It has the same coverage and same regional packages at slightly different rates and validities instead that you can check here in detail.

More info

 * APN: gigsky


 * Website: http://www.gigsky.com
 * users have reported that hotspot use (= tethering) is blocked through Apple devices

tellink Traveller SIM
Tellink is a Belgium-based independent telecom provider offering roaming SIM cards for long now. They are based on the network of Orange Belgium (previously Mobistar) and use Orange's reliable roaming in 200 countries and more than 600 networks. Only very few countries are not covered. Calls are made through call-back, but you receive a Belgium number.

Availability
Their "Easy SIM Card" can be ordered online for €25 to be delivered worldwide in 1-10 business days. It comes in all 3 formats with €15 airtime. Credit and SIM will never ever expire. Top-ups for €10, €25, €50 or €100 can be made on their website with international Master- or VISA-cards.

Data rates
These rates per MB are offered (selection): Take care that in some exotic countries like Vietnam up to €14.99 per MB is charged.
 * € 0.04 per MB: in all EU/EEA countries
 * € 0.29 per MB: China, Singapore, S. Korea, Switzerland, Turkey, USA
 * € 0.59 per MB: Australia, Serbia, Hong Kong, Thailand, Indonesia, Ukraine
 * € 0.79 per MB: Canada
 * € 0.89 per MB: Brazil, India, UAE
 * € 1.09 per MB: Russia, South Africa
 * € 1.39 per MB: Mexico

EU data packages
For the EU/EEA countries they offer these data packages valid for 30 days: For activation text code to 1960. Rates generally resemble those of TravelSIM, but are based on a different roaming platform which is considered to be very reliable too.
 * 500 MB: € 8 - activation: EU500
 * 1 GB: € 15 - activation: EU1024
 * 2 GB: € 29 - activation: EU2048
 * 3 GB: € 42 - activation: EU3072
 * 4 GB: € 55 - activation: EU4096
 * 5 GB: € 68 - activation: EU5120

More info

 * APN: mobinternet.be
 * Website: http://www.tellinkroaming.com

SimGlob
SimGlob is based in Lodz, Poland and offers a data-only SIM card. Like a MTX Connect, it doesn't come with a number. Calls are possible through VoIP, but no SMS. It has coverage in about 150 countries (see on Price list in main website). It offers 4G/LTE with speed up to 21 Mbps for download and 6 Mbps for upload.

Availability
Their SIM card is distributed online only. It's sold with package for selected country with free worldwide delivery. Card is activated before send. Top-up with selecting package can be done via credit card on this website . SIM card is valid up to 90 days without package.

Data rates
No data are given without packages. By topping up, you amount of top-up is used to buy a package for selected country. Amount and price of data depends of country which you want to go. The list will be updated soon
 * All EU countries, Aland Islands, Azores, Channel Islands, Cannary Islands, Madeira

More info

 * APN: internet
 * Website in English: https://en.simglob.com

MTX Connect
MTX Connect is based in Luxembourg and offers a data-only SIM card. It doesn't come with a number. Calls are possible through VoIP, but no SMS. It has coverage in about 80 countries: all of Europe, many CIS countries, much of Asia, a handful of other countries, North America see list. A few countries are covered in 4G/LTE which is still rare on international SIM cards, but not specified where.

Take care, that in the US they connect to Sprint network only (you need LTE band 25) in China to China Telekom (you need LTE bands 3 and 41) and in Japan to AU network. As most of their bands are rather unusual and there is no fallback to 2G/3G on these networks and in Canada their coverage is limited to Quebec, they are so far more suitable for an extended European roaming zone.

Availability
Their SIM card is distributed online only. It's sold for €5 with free worldwide delivery and containing €7 balance. For EU countries add applicable sales taxes. Activation needs to be done online by giving your personal information. Top-ups can be done online by credit card and SIM management through your online account. Paragraph 2 of the terms and conditions states that "All credit expires after 18 months inactivity (measured from the date of last use)", contradicting the FAQ, which states "MTX Connect SIM card balance will expire 365 days from the last successful top-up or the date of last service activation, whichever is later".

Data rates
MTX Connect has an European zone for all European countries and "Everywhere" rate for the additional countries. Prices are quoted without taxes. If the customer selects an EU country of residence in the "Edit personal data" section, then VAT will be added at the rate of the selected country, even if the service is used outside the EU VAT area.
 * PAYG rate for all covered countries: € 0.015 per MB
 * Optimal daily: 350 MB in Europe, 200 MB everywhere for 24 hours: € 3.49 - overuse throttled to 64 kbps
 * Unlimited daily: "unlimited" for 24 hours: € 9.99 - with an unspecified FUP!
 * Big Data: 2 GB in Europe, 1 GB everywhere for 15 days: € 14.99
 * Monster Data: 4 GB in Europe, 2 GB everywhere for 15 days: € 24.99

Free chat
Their SIM card includes free chat by Telegram, WhatsApp, WeChat, Viber and Line apps. It's automatically activated for 30 days with SIM card activation and extended for 90 days with every balance top-up. It doesn't require tariff plan activation and works with zero balance, but includes text messaging and emojis only, no other chat like video, audio or pics.

As this SIM doesn't come with any number associated, it may be hard to install some instant messengers. To verify WhatsApp for instance, you need another device with your home SIM inserted for the verification code.

More info

 * APN: internet
 * Website in English: http://www.mtxc.eu

AlwaysOnline Wireless (AOW)
AOW is a prepaid, data-only wireless service operated by Vancouver-based Otono Networks. The AOW network is on 4G/LTE-only in over 90 countries worldwide.

Availability
Access to the internet is offered through the AOW Global Data SIM or for iPads with their Apple SIM. Data SIM cards in standard, micro, and nano format, are available online on the AOW website for US$ 14.95, with free international shipping or at select retail locations worldwide.

AOW is also available on iPad with Apple SIM compatible with all cellular models of iPad, either with an embedded or removable Apple SIM. Apple SIMs are available for purchase at most Apple Store locations. Apple SIM plans are purchased directly on your iPad through the settings app. Once a plan is purchased on an iPad, it begins automatically. Rates may vary between Data SIM and Apple SIM.

Recharges
All top ups are self-serve, and credit card is the only payment option. For their Data SIM, top-ups are done online through your AOW account. Here, you can purchase and schedule your data plans according to your travel schedule.

Data SIM will expire after 12 months of inactivity. To keep a Data SIM active, you just need to have a plan scheduled.

Data rates
AOW offers plans by the hour, by the day, and by MB. Pricing depends on the country where you plan to travel to, with lower rates valid in the US: All data is 4G/LTE-only and includes tethering to other devices. For a full list of plans and rates, click here. You must purchase a new plan for each country you visit; however, any data remaining on the initial plan will roll over onto the plan for the new country.

More info

 * To use AOW Data SIM on an iPhone, you need to install the AOW mobile app which will configure your data settings; for all other smartphones, APN is: isp.ao.com
 * VoIP apps are supported for calling and messaging
 * Website: alwaysonlinewireless.com

JT Global (ekit, GO-SIM, Telestial)
Jersey-based JT Global is one of the longest-running supplier of international SIM cards. It uses various sale channels and brands for its pretty similar products called GO-SIM, Telestial and ekit all using a UK-based (+44) number. Speed is up to 3G.

JT Global brands
GO-SIM, ekit and Telestial are privately owned sub-companies and all part of JT Group with offices in the UK, USA and Australia. They offer two very similar international SIM cards: GO-SIM/ekit charges at least $10 or €12 for shipping plus in some countries 8-20% VAT or sales tax. Note that the prices in US$ are generally lower than in EURO or GBP.
 * international voice and data SIM including 190 countries and 150 cruise ships: €21 or $19 with $10 worth of credit preloaded
 * international data-only SIM with data coverage in 100 countries (list) on 3G, but no voice or text: €31 or $29 with 200 MB and €95 or $89 with 1 GB.

Recharges can be made online on your account or using their app by internatl. MasterCard, Visa or AmEx and for Telestial PayPal too. Prepaid credit expiry is 3 months after the last use or recharge on the voice & data SIM and 30 days on the data-only SIM. Tethering and hotspot use are allowed.

Data rates
Their rates for data up tp 3G: Ekit sells different packages for Zones 1 and 2 that are more expensive, as they are based on the their pay-as-you-go rate plus 30-200% discount depending on top-up.
 * Zone 1: $0.25/MB: EU, USA, Australia, New Zealand, South Africa, Israel
 * GO-SIM and Telestial packages: 500 MB: $39, 1 GB: $69, 2 GB: $119
 * Zone 2: $0.59/MB: Canada, Mexico, Caribbean, South America, Russia, Ukraine, UAE, Saudi Arabia, Ghana, Kenya, Nigeria, East Asia, SE Asia and Fiji
 * GO-SIM and Telestial packages (incl. Zone 1): 250 MB: $29, 500 GB: $49, 1 GB: $89
 * Zone 3 (on voice & data SIM only): $0.89/MB: China, Taiwan, Egypt, Morocco, Senegal, Tanzania, Serbia, Slovenia, South Asia, West Asia and more
 * rest of the world (on voice & data SIM only): up to $29.99 per MB in some countries like Cuba or on cruise ships (see rate finder).

More info

 * APN: mobiledata
 * Ekit website: http://www.ekit.com
 * GO-SIM website: http://www.gosim.com/
 * Telestial website: http://www.telestial.com

Naka based offers (different brands)
Naka is a MVNE based in Switzerland that offers a roaming platform that is used by various suppliers of international SIM cards in very different products.

Swiss Mobile
Naka Ltd./AG introduced 2014 a roaming SIM in cooperation with Swiss Airlines. They lowered prices and offer quite resonable rates for data. But their SIM card is a mixed bag: you will get a "UK" number (+44) that proved to be registered in Jersey (+447937...) that can lead to substantial surcharges for the caller as it's outside of the EU. Roaming is in 180 countries, all are free now for incoming calls and all calling is now done as call-thru, not call-back anymore.

Reviews are mixed too: While some users had no problems and enjoyed quite low rates, others reported issues with their lack of support and calling that is routed through call-back and call-through procedures that you may consider inconvenient. That's why it's only mentioned here for data and with a word of caution.

Availability
The starter can be bought on Swiss airlines flights in the on-board shop at CHF 29 or online on the Swiss website at CHF 40 plus delivery of CHF 1.50-3.00 to anywhere in the world. In both cases it contains a credit of CHF 20. For the first use, it needs to be activated on their website, where you can pick a "UK" number too.

Recharges can only be made on their website of min. CHF 20 by credit card or PayPal. There is no validity period of your top-up. If you don't use your plan for more than 9 months, an unspecified inactivity fee will be charged. When the balance is run to 0, the plan will stay on for another 365 days before it gets terminated.

Data rates
Data prices on their pay-as-you-go rate are quite variable even in the same country. For their cheaper rates you need to enable these operators on their website and choose the cheapest one on your SIM menu at settings and countries sub-menu before roaming. Price quotes are: For certain regions they have released special data packages valid for 30 days: Be sure to pick the cheapest option for your destination firstn where they offer different options.
 * CHF 0.01-0.10/MB: Poland
 * CHF 0.018-0.10/MB: UK
 * CHF 0.025-0.10/MB: Germany
 * CHF 0.10/MB: Australia, most EU countries, Hong Kong, Russia, Turkey, Canada, South Africa, Israel, Switzerland
 * CHF 0.10-0.43/MB: USA
 * CHF 0.24/MB in China, Brazil, Chile, Mexico, India, Indonesia
 * for more countries check here
 * for the EU: 250 MB: CHF 5, 500 MB: CHF 7.50, 1 GB: CHF 13.50
 * for the US: 200 MB: CHF 15, 500 MB: CHF 25, 1 GB: CHF 35

More info
Many aspects of their SIM cards remain unclear like speed, tethering, network policy etc. There is no phone support and requests by email remained unanswered.
 * APN: chili
 * Website in English with discrepancies to other language versions

Other Naka-based products
Naka Ltd. offers more similar products with very various pricing:
 * Lufthansa Mobile: Similar to Swiss Mobile you get Lufthansa Mobile on Lufthansa flights from 2017. They are sold at € 29 with € 10 credit and come with a German number. It has essentially the same rates as Swiss Mobile in € instead of CHF.
 * iVittamobile 2.0 has relaunched recently and now offers the cheapest package of any Naka clone for certain countries. They offer a 1 GB pack for US$ 10 in the EU, USA, Australia, Canada, Gibraltar, New Zealand, Norway, Saudi Arabia and Turkey. But other countries stay on a high per-MB rate of US $ 0.10-0.20 per MB. SIM card can be ordered for US$ 10 with the same value preloaded plus around US$ 10+ for delivery and taxes if applicable. Top-ups are made online in US$ 10 increments.
 * ChilliSim is another roaming SIM card sold through a UK company aimed mainly for the US market. While it's starter price is similar at US$ 30 with US$ 20 credit, its rates are much higher for instance at US$ 0.19/MB and for a 1 GB pack at US$ 39 within the EU.
 * Q-Travel from Qynamic is data-only roaming SIM fully managed via the Qynamic App (for iOS and Android). Starter pack is for € 9.90 incl. delivery and 250 MB available on Amazon and eBay. Pricing is in two zones for a total of 80 countries. The "Global Zone" consists of most of Europe, USA, Australia and South Africa, while the "Global Zone+" includes a few more countries like China or in Latin America. They sell data packs valid for a month with 1 GB at € 15 or 3 GB at € 39 in the smaller and 1 GB at € 29 in the extended Global Zone+, which are quite reasonable for Naka products.
 * Drimsim (Дримсим) has so far the most interesting pricing for users of all Naka-based products as it's strictly based on a low per-MB rate instead of packages and therefore featured in more detail below:

Drimsim (Дримсим)
Drimsim is distributed from Moscow with coverage in 180 countries. It builds on the same platform as the Naka products (see above) that proved not so reliable. They started in 2016 and do all their operations through their app. Unfortunately, their support is in Russian mostly, only with some English. At least their app is translated, but not their website.

Recently, they lowered prices and offer the lowest per-MB rates in the international SIM card market now. Connections used to be up to 3G and can be buggy at times. In about 30 countries 4G/LTE roaming seems to be working now (for list see comments).

Availability
Their SIM card is sold through their app available for Android and iOS. To register you need to send a copy of the first page of your passport through the app or by email.

The SIM in triple-size is for free without credit, but shipping is € 10. Top-ups can be made through their app by credit card without any minimal top-up. Inactivitly period is one year. Check balance by *130#.

SIM cards are sometimes shipped from Siberia. So expect some delivery time to Europe, Asia or America.

Data rates
Drimsim follows a solely per-MB rate without any packages offered. Their prices are quite low at € 0.01-20 per MB differing according to country: Support is given through the app, preferably in Russian and if you're lucky in English too.
 * 1c per MB: all EU countries, Israel, Russia, South Africa, Turkey, Australia
 * 1.2c per MB: USA, Luxembourg
 * 1.5c per MB: Switzerland
 * 2.5c per MB: China
 * 3c per MB: Brazil, Mexico
 * 3.5c per MB : Canada
 * 5c per MB: India
 * € 2 per MB: Cuba
 * € 40 per MB: Mongolia
 * for more countries check their price list

More info

 * APN: chili
 * Website in Russian: https://drimsim.com
 * to order fill out this Russian form in English letters: https://drimsim.com/checkout.html

MySims2Go
MySims2Go is a UK-based start-up selling internatl. SIM cards since 2010. For voice it roams in "97% of the world's 222 countries" (which is astonishing as the UN only counts 193 member states). They started with a call-back scheme instead of IDD. This has been changed to direct call in 2013 employing a UK-based number (+44). In 2015 they added data services to their SIMs in about 100 countries which is very overpriced and way higher than other offers.

Availability
Their SIM is only sold online through their website: Depending of destination 5-10 € for shipping needs to be added. Payment is by credit card, bank transfer or PayPal. For top-ups of 10, 20, 50, 100 or 200 € go to their website using same payment systems. SIM card expires after 12 months of non-use. Check balance by *187#.
 * SIM card + 5 € credit: 29.95 €
 * SIM card + 10 € credit: 34.95 €
 * SIM card + 80 € credit: 99.95 €

Data rates
They have a total of 11 zones for data and only offer one pay-as-you-go rate, no packages:
 * €0.19/MB: USA, UK, Egypt
 * €0.29/MB: China, Russia, Canada
 * €0.39/MB: EU (ex. UK), Hong Kong, Israel, Japan, Korea, Turkey, Ukraine
 * €0.69/MB: Brazil, Gibraltar, Indonesia, Kuwait, Moldova, Sri Lanka
 * €0.99/MB: India, Kenya
 * €1.49-2.49/MB: Tunesia, Thailand, Dominican Rep.


 * €3.99-9.99/MB: Bolivia, Morocco, Colombia, Switzerland, Panama, Singapore, Pakistan, South Africa, Tanzania, Bermuda, Nicaragua

More info

 * APN: mobiledata
 * Website: http://www.mysims2go.com

CwSim (ComfortWay)
The Russian TapMobile One company has become the first to implement Remote SIM Provisioning specification in 2016 and advertises its own carrier agnostic SIM. The main advantage of this so-called CwSim comparing to traditional SIM cards is being associated not only with one network operator, but receiving and using profiles of many different operators depending on the location in 180+ countries.

This technology allows to select a data plan of a local mobile operator in one click via the ComfortWay mobile app by downloading of mobile profiles "by air". When you arrive in a country it loads a default profile that it uses to provision not necessarily with a local profile. Usually it seems to be a profile from a roaming platform that has a cheap roaming agreement with one of the local providers. You can activate the default profile by entering the SIM menu and pressing connect. In 2017 finally global sales were launched and customer support service and the distribution of SIM cards are organized in their offices in Prague and Hong Kong.

Users can check balance and prices in the app. Users don't lose unused MB, if they leave a country and come back within the timelines of the bundle validity which allows to use a 500 MB package in 14 days and 1 GB pack in 30 days.

Availability
The CwSim card is officially available for purchase at the price of 990 RUB or €17. It's possible to buy it from the official site for €27-39 including delivery (which differs according to world region) and €5 credit pre-loaded. In Australia this product is dubbed Ezyroam with an own distribution. Better prices can be found in Europe on Amazon.de or Amazon.co.uk.

Data rates
From 2017 they offer a per MB rate as well as data packages of up 100 MB, 200 MB, 500 MB and 1 GB. The EU countries and Asia-Pacific region is on average of €8.50 per GB pack. Here are some quotes of their prices based in €. Prices can be quite low, but differ heavily between countries. Check other tariffs here.
 * EU countries: variable rates ranging 0.92 - 1.99c per MB and 1 GB at €7.40 - €14.80 according to country
 * Hong Kong: per MB 0.93c - 1 GB: €7.70
 * Australia: per MB 1.32c - 1 GB: €10.90
 * USA: per MB 1.85c - 1 GB: €15.20
 * China: per MB 2.86c - 1 GB: €23.40
 * Brazil: per MB 4.1c - 1 GB: €34
 * Canada: per MB 5.3c - 1 GB: €43.40
 * India: per MB 7.37c - 1 GB: €60.40
 * Cuba: per MB €2.31

More info

 * APN varies according to profile
 * Website: http://cwsim.com/en

BNESIM
BNESIM by this new Hong Kong - based company started in 2017. It's the first international roaming SIM coming from Asia with a worldwide distribution. It works in 170 countries and in some of them 4G/LTE is advertised. They offer flat plans valid in 64 countries called "Internet Home Countries" (IHC) without expiration and specific rates for the other countries. Their SIM is data-only and all calls have to be made by VoIP through their app offered in the usual app stores or on their website.

The independent reviews of this SIM card like on Amazon are rather mixed up to now. It also seems to be object of overpricing and a scam at some airports which may not to the fault of the company.

Availability
The BNESIM can be ordered through their online store or Amazon.com for a 9.9 € delivery fee to reach every country in 5-7 working days. Activation is by code through the website and all SIM management and top-ups can be made online or through their app by major credit cards.

Pricing
64 countries belong to their preferred 'Internet Home Countries' (IHC). These are most of Europe, Russia, China, India, Thailand, Malaysia, Indonesia, Australia, USA, Brazil, Venezuela, Chile and a few more.

They offer SIM cards with different plans attached that can't be changed. Their unique feature is either allowances that don't expire or "unlimited" data plans: No expiration means that their allowance doesn't expire, but a top-up is to be made every 6 months to keep the SIM alive. "Unlimited" data seems to be restricted to 5 GB per day and 100 GB per month at an unclear speed.
 * Starter pack: 100 MB in the IHC countries, no expiration: € 9
 * Surf: 1 GB in the IHC countries, no expiration: € 19
 * Surf & Talk: 1 GB and 250 mins VoIP in the IHC countries, no expiration: € 39
 * Surf Europe Unlimited: "unlimited" data for 30 days in the 31 EU countries: € 35
 * Surf Asia Unlimited: "unlimited" data for 30 days in 14 Asian countries: € 45

You can add Direct Inward Dialing/dial-in (DID) numbers of about 20 countries for a fee. For more data 1 GB is sold for € 19 and 3 GB for € 55 without expiration.

More info

 * APN: bne.cs101
 * Website: http://www.bnesim.com

AirSIM
AirSIM is another Hong Kong made SIM card for roaming. Its data SIM combines Soft SIM and Over-the-AIR (OTA) technologies to enjoy data service in more than 100 countries. The SIM is managed through an app available for iOS and Android. It is data only, but voice calls can be made through VoIP.

Availability
The SIM card is available on the streets of Hong Kong e.g in 7-Eleven stores and through various Asian online SIM vendors. It's sold at HK$ 100, 200 or 300 with the same credit preloaded plus delivery. On its own website they only deliver to Singapore. But it's beginning to be sold on eBay, in Canada, or from Singapore with a worldwide delivery.

When you enter a new country, it takes about 3 minutes for the SIM to gather configuration data and apply the data plan. Top-ups can be made online by credit card and inactivity period is one year, before the SIM will be turned off and balance lost.

Pricing
All prices and plans are country-specific. Some examples: Most data bundles are in 3G and 4G/LTE and have a FUP of 500 MB per day when they are throttled to slower speeds. To all their data packages voice packs can be added too that are VoIP calls through their AirTalk Roam app. Purchase of all packages is online with a start date to be set or through their app for immediate use. A maximum of 2 packs can be used simultanously.
 * China: 4G/LTE on China Mobile - 1 day: HK$ 30, 2 days: HK$60, 3 days: HK$ 88, 5 days: HK$128, 7 days: HK$ 178, 15 days with 2 GB: HK$ 168, with 5 GB: HK$ 398 and more. When more than 500 MB/day is used, speed will be throttled to 128 kbps.
 * Japan: 4G/LTE on Softbank - 24 hours: HK$ 30, 3 days: HK$ 68, 5 days: HK$ 98, 7 days: HK$ 128, 9 days: HK$ 156. When more than 500 MB/day is used, speed will be throttled to 256 kbps.
 * India: 4G/LTE on Airtel: HK$ 118 for 8 days and 4 GB when it will be throttled to 128 kbps.
 * Asia: Taiwan on TaiwanStar, S.Korea on SK Telecom, Thailand on DTAC, Singapore on StarHub, Macau on CTM, Hong Kong on China Mobile HK, Malaysia on Digi, Indonesia on Indosat Ooredoo, Vietnam on Viettel, Philippines on Globe, Myanmar on MPT and Cambodia on Metfone.
 * Middle East: Kuwait, Qatar, UAE, Saudi-Arabia, Israel and Oman
 * as well as most of Europe, most of North and Latin America, and AU/NZ.

More info

 * APN: variable according to country, check here
 * Website: https://www.airsim.com.hk/ (change to English on top right)

ChatSim
ChatSim, formerly known as WhatSIM, is the first international roaming SIM card aimed at social messenger users only. This Estonian-based SIM by the Italian MVNO Zeromobile roams in 250 networks of around 165 countries, partly in 4G/LTE too. It supports major messengers like Telegram, WhatsApp, BBM, Facebook Messenger, WeChat, Line, QQi and Kakao, Kik and Hike.

Availability
The SIM card needs to be ordered online on their website. They charge 15 € for the SIM and 10-15 € for shipping. All three SIM sizes are available. When you get the SIM, it needs to be activated online. From 2018 they offer two different product lines:
 * their old ChatSim Unlimited that includes only messaging in all countries
 * their new ChatSim Internet + Chat that includes all pics, videos, audios, VoIP through the apps

Recharge
Reloads are by credit card on their website. It will not expire, as long as you use it once within 12 months and top-up 30 € every year. You need to switch off data traffic on all mobile apps on your device as long as you don't add extra credit, because your SIM will blocked, if anything else but text messenging is detected and you don't have credits or a data allowance.

ChatSim Unlimited
For a 15 € charge included in the starter price, you can chat for one month in all covered countries. The rate for one year is 30 €. But this refers only to text and emoticons, not to other types of messages like pictures or videos.

For multimedia contents like photos, video or audio, a price scheme based on credits and zones is in place. To send multimedia messenges or make VoIP calls, you need to have a base package and add an multimedia recharge at a very high price. The zoning starts at 50 credits (= 0.375 €) per MB in the EU which is even above the EU data cap and goes up to 750 credits (= 5.625 €) per MB in exotic countries. All multimedia content and surfing other than text messenging is charged accordingly. VoIP or other calls through the messengers are possible, but billed likewise. Voice calls and SMS are not supported.

ChatSim Internet + Chat
Their new product line introduced in February 2018 is called ChatSim Internet + Chat. In contrast to the former it includes all multimedia content accessed through the allowed apps. For 15 € per month all messaging plus pics, videos, audios, VoIP etc. are included, but only in about half of the countries covered in Zones 1-3. For all additional data and more countries you can add regular monthly internet packages depending on zones in which the roaming countries (check zoning and packages on their website) are categorized.
 * APN: chatsim
 * Username: your phone number: 372.........
 * Website: http://www.chatsim.com

Truephone
Truphone is an UK provider offering international SIM cards. They haven't been listed as according to their new rules you must be a UK resident to buy one of their SIMs. If you are resident in anywhere else, you’re not eligible. You must also have a UK debit or credit card with a UK registered address as they'll send your SIM to this address. This seems not to be true to their new Apple SIM.

Apple SIM
For some Apple tablets like iPad mini 3, iPad mini 4, iPad Air 2 and iPad Pro (on iOS 11 or later) they offer an international data SIM valid in the EU/EEA countries, Australia, Hong Kong, India and the US. All packages are valid for 30 days and include a data quota: The Apple SIM cards are only sold electronically to the EU/EEA and the mentioned roaming countries. You may change your Apple ID to it coming from other places.
 * 500 MB: €6, £6, AU$ 10, HK$ 40
 * 1 GB: €10, £12, AU$ 19, HK$ 70
 * 3 GB: €25, £29, AU$ 35, HK$ 200
 * Website https://www.truphone.com