Straight Talk and Net10 are sister companies. If you had lesser service with Net10 it was because of the assigned primary carriers not being the same. ST CDMA phones run on verizon only with no roaming. Sprint is soon to be an added CDMA provider, but with a specific phone model Android. Net 10 CDMA phones DO roam on other providers other than Verizon. ST and Net10 GSM phones both have identical roaming capabilities (ST and Net10 phones are identical).