iPad Air 2
Like all earlier iPad models, the cellular iPad Air 2 model ships unlocked and with support for
twenty LTE bands, more than any earlier iPad. In the US, this single iPad Air 2 supports AT&T, Sprint, T-Mobile, and Verizon.
Specifically, the
iPad Air 2 (Wi-Fi/Cellular) supports LTE bands 1, 2, 3, 4, 5, 7, 8, 13, 17, 18, 19, 20, 25, 26, 28, 29, 38, 39, 40, and 41. It also supports CDMA EV-DO Rev. A and Rev. B (800, 1900 MHz), GSM/EDGE (850, 900, 1800, 1900 MHz) and UMTS/HSPA/HSPA+/DC-HSDPA (850, 900, 1700/2100, 1900, 2100 MHz).
In the US and UK, if purchased from Apple or an Apple Authorized Reseller -- like site sponsor
PowerMax -- the cellular capable iPad Air 2 also ships with a new "
Apple SIM" that is designed to support multiple carriers via a single Apple-issued
Nano SIM card, but in practice it has a
frustrating list of limitations imposed by some carriers.