What network is your NMVO really on?

Sample List Of MVNOs by Network
Boost Mobile - Sprint
Consumer Cellular - AT&T, T-Mobile
CREDO Mobile - Verizon
Cricket - AT&T
FreeUP - AT&T
Good2Go Mobile   - AT&T
Google Fi - Sprint, T-Mobile, U.S. Cellular, Three
GreatCall - Verizon
H2O Wireless - AT&T
Metro by T-Mobile - T-Mobile
Mint Mobile - T-Mobile
Net10 - T-Mobile, Sprint, AT&T, Verizon
Page Plus - Verizon
Pix Wireless - Sprint, AT&T
Pure TalkUSA - AT&T
Red Pocket - Sprint, T-Mobile, Verizon, AT&T
Republic Wireless - Sprint, T-Mobile
Simple Mobile - T-Mobile
Spectrum Mobile - Verizon
Straight Talk - Sprint, T-Mobile, Verizon, AT&T
Tello - Sprint
Text Now - Sprint
Ting - T-Mobile, Sprint
Total Wireless - Verizon
TracFone - Sprint, T-Mobile, Verizon, AT&T
Twigby - Verizon, Sprint
U.S. Cellular - U.S. Cellular
Ultra Mobile - T-Mobile
US Mobile - T-Mobile, Verizon
Virgin Mobile - Sprint
Xfinity Mobile - Verizon

There's more on at the link above ...

wow a bunch of those outfits are really AT&T

Well, their network ...