Bangladesh

Basics
There are 5 mobile network operators in Bangladesh: The 3 biggest operators Grameenphone, Banglalink and Robi have more than 90% of all customers. Airtel has applied for a merger with Robi in 2015, which was approved in 2016. With all GSM operators 2G is on 900 and 1800 MHz. 3G up to HSPA+ on 2100 MHz is still in the population centers only, 4G/LTE hasn't started yet. A 6th provider called Citycell based on GSM-incompatible CDMA was shut down in 2016 for not paying its dues.
 * Grameenphone (joint venture with Telenor)
 * Banglalink (by internatl. Vimpelcom)
 * Robi (by Malaysian Axiata Group) merging with Robi
 * Airtel Bangladesh (by Indian Bharti Airtel) merging with Airtel
 * Teletalk (state-owned)

To purchase a SIM card, the official legal requirements are a registration with: There are some shops or street vendors who will not ask for it. But by law it's required and you should be ready to show and provide it. The price for a SIM card is usually between 100 and 500 BDT. After getting out from the airport exit door, SIM cards may be bought from snack shops located outside the airport. Alternatively, you may visit any top-up or service center of the mobile operators. Wherever you go, you will find within 100 meters some mobile SIM card and top-up vendors.
 * one or two passport size color photographs
 * photo copy of the passport and visa of Bangladesh

In 2015 a SIM registration system has been established. Bangladeshis can send their national ID number by SMS. Foreigners should go to the shops for registration showing their passport/visa. All unregistered SIM cards are to be blocked and discontinued after an April 30th, 2016 deadline.

In November 2015 the government blocked social media and messenging apps like Facebook, Viber, Whatsapp, Line and some more on all providers for a few days because of security concerns.

From 2015 add at total of 18% taxes (15% VAT sales tax and 3% telecom tax called supplementary duty) to all given prices.

Grameenphone
Grameenphone (Bengali: গ্রামীণফোন) is a joint venture between Norway's Telenor and Grameen Telecom Corporation. It is the largest operator in the country with more than  53 million subscribers, which is about  43% market share. It started with 3G in 2013 and reaches 90% of population coverage by 3G in 2016: 3G coverage map. Full 3G coverage is expected by 2020. LTE will start in 2017 or later. Nevertheless, they are considered the most reliable provider for internet in the country at the highest prices.

Availability
They sell a lot of different prepaid starter packs: Nishciento, Bondhu, Amotron, djuice, Smile, Shohoj, Apon and more. All are sold for 200 BDT (plus 18% taxes) and differ only for voice and text as they don't contain data at all. You can get their SIM card everywhere and at their stores (locator).

Data feature packages
Default rate outside of packages is 0.971 BDT per MB. These packages can be booked on all prepaid plans:

Activation is online through here or by activation code. Night package is valid midnight to 10am. To all prices add 18% taxes. All packages are max. 1 Mbps on 3G, except the 4 and 20 GB packs that are max. 2 Mbps. Overuse is charged at 0.01 BDT per 10 KB.

More Information

 * APN: gpInternet
 * Website: http://www.grameenphone.com/

Banglalink
Banglalink (Bengali: বাংলালিংক), managed by internatl. Vimpelcom is the 2nd provider in the country. It has more than 31 million customers and a 26% market share serving all 64 districts by 2G and since 2014 by 3G too. They started in Dhakar in 2013 with 3G and cover at least all towns by now (3G coverage map).

Availability
They sell their prepaid starter packs called Play, Desh or 1 sec pulse in their shops (sales and care centers) for around 200 taka. For data it doesn't make any difference which offer to choose, because none of them cointain data for a start.

There and at their sales points, you can get top-ups by scratch cards ranging from 10 to 1000 taka. To add a top-up by code, dial *123*<14-digit PIN>#. Furthermore, you can top-up online by credit card or using electronic recharges called iTop-up.

Data featured packages
Data outside of packages is 1 paisa per 1 KB. They have a long list of so-called data packages. To all prices add 18% taxes: All packages don't auto-renew after being used up. You can activate anytime a new package. Activation is done online. Once pack volume is exhausted, 1 paisa / 10 KB charge will be applied and speed will be reduced to 128 kbps to protect. To check pack balance, dial *5000*500#.

Banglalink has also introduced so-called recharge packs. These are only available by iTopUp when you need to top-up the exact amount to trigger a data package:

Check data volume of recharge packs by *124*50#

More Information

 * APN: blweb
 * Website: http://www.banglalink.com.bd/

Robi Axiata (formerly AKTel)
Robi (Bengali: রবি) formerly known as AKTel, run by the Malaysian Axiata Group, is the 3rd network provider with 24 million subscribers. It's expected that they will take over Airtel Bangladesh (see below) soon. In 2016 their merger request was approved. The brand Robi will probably be maintained, Their 3G coverage called "3.5G" is still rather patchy: (3G coverage map).

Availability
From 15-Nov-2015 onwards, Robi will start simplifying its prepaid product portfolio. From a bucket of 10 prepaid packages, Robi will streamline its portfolio down to 5 prepaid packages called Shorol 39, Unlimited FnF, Goti 36, Robi Club 34, and'' Nobanno 37. ''All starters are sold at Tk. 200 and contain only 50 MB data in their stores (store finder).

You can top-up at their self-service mobile balance recharge Kiosk-machines fixed denominations of BDT 10, 20, 50, 100, 500 & 1000. Or buy scratch cards giving you 30-365 days validity. To enter PIN, type *111*#. To enquire account balance and validity, type *222#.

Data feature packages
Default rate is 0.015 BDT per KB, overuse fee of packages 0.01 BDT per 10 KB. They offer these data packages. Again, add 18% taxes:

All packages auto-renew. To deactivate, dial *8444#. You can purchase same pack multiple times to top-up internet volume. To get 3.5G internet service, you may need to dial *666*1#. To check internet balance,dial *8444*88#.

More information

 * APN: INTERNET
 * http://www.robi.com.bd/en/

Airtel Bangladesh (merging with Robi)
In contrast to India, Airtel in Bangladesh (Bengali: এয়ারটেল), run by Indian Bahrti Airtel, never had a huge share. They've only cared for about 7% of the national subscribers. In 2015 Airtel and Robi (Axiata) agreed to a merger in Bangladesh. Airtel will be dropped and their network will be united with Robi's in 2016 or later as their merger is now approved. Their 3G network is still limited to the Dhaka metro area and some provincial capitals: (3G coverage map).

Availability
A starter pack is sold at 110 BDT with 300 MB data and 90 days validity in their service centers (locator). You can recharge online, by electronic rechage kiosks or Easy Recharge in fast food outlets, cafés, super markets and some banks.

Data feature packages
To check balance, type *778*555#.

More information

 * APN: internet
 * Website: http://www.bd.airtel.com/

Teletalk
Teletalk Bangladesh Ltd., brand name Teletalk (Bengali: টেলিটক) is a state-owned mobile phone company. It's the smallest operator of all mobile phone services in Bangladesh with a 2% market share caring for only 4 million out of 131 million mobile users. It can't be recommended for travelers, because of notoriously unreliable service and general bad coverage.

The Bangladeshi government has rebranded Teletalk in March 2016 in an attempt to accelerate the operator’s financial recovery as it has generated a loss of nearly BDT 4 billion. Teletalk will get a room at every post office as part of the rebranding. Furthermore, Teletalk wants to expand its network through partnerships with private operators. Because of the current situation, no rates are added.

In 2016 plans have been announced to install 685 new 2G base transceiver stations (BTS) and 559 3G BTS, plus upgrade Teletalk’s core network. The network expansion project begins in July 2016 and is scheduled to be completed by December 2017. The cellco has also recently been looking at network sharing deals for additional expansion.