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<td>Works now, but AT&T may not allow L5 activation; prepaid SIM now discontinued; existing SIMs still usable. Cost varies by region/country. MMS not supported by Truphone on any device/network.<br>[AT&T 3G was scheduled to shut down on Feb 22, 2022; 4G data works, but unclear whether Truphone will implement VoLTE with any network for its prepaid SIM.]<br>Due to AT&T's device whitelisting, status needs reconfirming.</td>
<td>Works for 2G calls on T-mobile for now, and 4G data, but no VoLTE calling; prepaid international SIM, but now discontinued; existing SIMs still usable. Cost varies by region/country. MMS not supported by 1Global on any device/network.<br>