Aside from having a WiFi-only and a WiFi+4G variant in the line-up (of course, there’s also black, white, 16/32/64GB versions to choose from), the New iPad, which Apple introduced on March 7, has two variants when it comes to LTE.
The first one is the WiFi+4G model for AT&T, which supports 4G LTE (700, 2100 MHz); UMTS/HSPA/HSPA+/DC-HSDPA (850, 900, 1900, 2100 MHz); GSM/EDGE (850, 900, 1800, 1900 MHz). The second one is the WiFi+4G model for Verizon, which is compatible with the 4G LTE (700 MHz); CDMA EV-DO Rev. A (800, 1900 MHz); UMTS/HSPA/HSPA+/DC-HSDPA (850, 900, 1900, 2100 MHz); GSM/EDGE (850, 900, 1800, 1900 MHz) bands.
It looks like Verizon’s flavor is an exclusive for now (even though the radio would support other carriers too) and Apple has confirmed that the company will sell the AT&T 4G variant overseas. International customers who will get this version will be able to provision the device on AT&T’s LTE network when ther’re in the U.S.A.
The confirmation comes straight from the horse’s mouth; Apple says “iPads sold internationally will be able to connect to AT&Ts LTE network when in the US with the appropriate SIM and plan.”