Hey JT
Looking at basically anything from ~700-2100MHz as that's the "rough" scope of the band - country dependent
for example:
MikroTik R11e supports International LTE bands 1,2,3,7,8,20,38 and 40.
2G Category Class12
3G Category R7 (21Mbps Downlinks, 5.76Mbps Uplink)
LTE Category 4 (150Mbps Downlink, 50Mbps Uplink)
LTE FDD bands 1 (2100MHz) / 2 (1900MHz) / 3 (1800MHz) / 7 (2600MHz) / 8 (900 MHz) / 20 (800MHz)
LTE TDD bands 38 (2600MHz) / 40 (2300MHz)
Other cards from Sierra and Huawei support different bands - but that's the general list
Cheers