Also, in my experience in the US - Data Only SIMs tend to only be available if you have a primary 'regular' account with the carrier. I haven't had too much lu

Also, in my experience in the US - Data Only SIMs tend to only be available if you have a primary 'regular' account with the carrier. I haven't had too much luck just being able to get a stand-alone data sim from Verizon, AT&T or TMobile...