Does CDMA unlock mean it can be use for both Sprint and Verizon? Or Page Plus?
Yep, same question here. Usually iphones for Verizon are labeled Verizon…
It will work with these networks:
UMTS/HSDPA/HSUPA (850, 900, 1900, 2100 MHz)
GSM/EDGE (850, 900, 1800, 1900 MHz)
CDMA EV-DO Rev. A (800, 1900 MHz)3
You will need to check with your provider for compatibility.
I was under the impression that the gsm is locked for domestic use and only works outside of the USA/North America.
Is that the case or can I use t-mobile as my us carrier?
Too expensive for 4s. You can get a 5 cheaper and better condition on ebay deals
Will it work with Tracfone?
Not really – those will all be “C” grade.
What are grades A, B or C? Someone please tell me?
Grade A: units look almost like new and usually come with an Authentic Apple OEM USB Cable, charger and headphones. Grade B may have minor scrapes or scratches and come with an aftermarket charger / cables. Grade C means the phone is REALLY used: may show significant signs of use, and even scratches on screen. Grade C item sample is here:
I guess this is a Sprint phone.
800, 1900 MHz - 2G/3G/4G (PCS/EVDO/LTE)
800, 1900, 2500 MHz - 4G (phased out WiMAX, moving to LTE bands 26, 25, 41)
850, 1900 MHz - 3G (EVDO) - currently reframing 1900 MHz for LTE
750, 1700/2100 MHz - 4G (LTE bands 13, 4) - currently building out