What type of iPhone is on cricket?

Unlike the iPhone 4S, the iPhone 5 comes in three variations.

    • AT&T version: GSM model A1428*: UMTS/HSPA+/DC-HSDPA (850; 900; 1,900; 2,100 MHz); GSM/EDGE (850; 900; 1,800; 1,900 MHz); LTE (Bands 4 and 17)
    • Verizon Wireless/Sprint Nextel CDMA model A1429*: CDMA EV-DO Rev. A and Rev. B (800; 1,900; 2,100 MHz); UMTS/HSPA+/DC-HSDPA (850; 900; 1,900; 2,100 MHz); GSM/EDGE (850; 900; 1,800; 1,900 MHz); LTE (Bands 1, 3, 5, 13, 25)
    • International GSM version-intended for Germany, the U.K., South Korea, Japan, Singapore, and Hong Kong: GSM model A1429*: UMTS/HSPA+/DC-HSDPA (850; 900; 1,900; 2,100 MHz); GSM/EDGE (850; 900; 1,800; 1,900 MHz); LTE (Bands 1, 3, 5)
Since Cricket now offers the iPhone 5, which one of those phones would it carry. Also, what would be the prospects of unlocking it since the Verizon and AT&T ones are easily unlockable.