I can not find this information.
For details, you can see the BNAD information supported by the EC25-A module, which should be able to support the relevant operators.
Thanks! I tried already this card on my gl-mifi modem and its works.
Yes, I tested it and works on all US carriers (ATT, Tmobile, and Verizon), just keep in mind that it’s a CAT-4 modem with no carrier aggregation (CA). If you would like to have CA, then consider upgrading to an EP06-A or EM12/16.