Talk:United States/@comment-159.216.23.43-20180124152114/@comment-24682153-20180125020428

Hi. T-Mobile doesn't use CDMA, it's a GSM network like AT&T. Sprint and Verizon use CDMA. But in the end, it's as incompatible for some GSM devices like CDMA because of different frequencies. That's like when you want to listen to your favourite radio station on FM radio, but only have an AM receiver. (I know you are all digital in Norway now for radio.)

Coming from Europe to the US it's essential to check the frequencies your device is capable of in detail. How to do it is shown in detail on our Network_compatibility_of_devices manual.

What the Netgear Aircard is concerned. Don't buy it for US use. It has   700/900/1800/2100/2600 MHz for LTE. These bands are used in most parts of the world, but not the US on 4G/LTE. There are very few mobile hotspot routers on the market for both sides of the Atlantic.

Generally, you can be pretty sure with an iPhone of 5+ and later and most uptodate high-end Android devices. But you should always check LTE frequency matches of your technical specs and the frequencies employed by T-Mobile and AT&T in the US. 3G is sufficient for basic data in the metro areas, but is now winding down in the US. For fast data on the countryside too, you need 4G/LTE.