this totally makes no sense...
Verizon/Sprint = DUAL BAND (800mhz/1900mhz) eveywhere
Cricket = TRY BAND (800mhz/1900mhz some places, exept AWS) (1700mhz in AWS)
Verizon/Sprint phones are only DUAL BAND, meaning no native AWS cricket access...
however, you are actually using the PREMIUM...