According to Verizon, its 4G LTE devices are not blocked and if you want to take one of them to another carrier, there is no code that you need to get the radio telephony networks for others to shake. Comment How to cricket to transfer phone services to one another home entertainment phone by: Robert Schrader How to backup a SIM card to home entertainment from: Techwalla Editor How to enable a Rogers SIM card for home entertainment by: Matt Connect to activate a Vodafone SIM card, home entertainment by: Contributor author How to retrieve messages on an iPhone at home entertainment from: Seth Silberman How a SIM card at home entertainment from: Michael Jones What about US SCORE about us CONTACT US GTC Privacy Copyright advertising to take full advantage of the benefits of the 4G LTE network of T-Mobile for incorrect access. Iphone A1586 Unlocked. Um, confirm Please note that your current device is equipped with LTE bands 2, 4 and 12, or purchase order e For example, to program a Verizon iPhone global Ready 3G phone to a 4G LTE device from T-Mob that with another mobile operator works, either use code 000000 or code 123456. It may take several hours for several days before you receive activation code , although some services indicate this immediately after entering the payment information for you. Verizon, as you said, had to unlock their phones because of the FCC, but just because they work on CDMA, and GSM makes them no more relaxed than the GSM phones. How to do this on someone, provided that all service obligations and other financial obligations to the mobile provider are met and your account is in good condition. Sometimes device unlock can take multiple phone calls and hours (up to two days according to the CTIA guidelines.) If you bring your device abroad, I recommend that you start the process at least one week in advance. Most of the time you will come into software conflicts that prevent locking your device from working with a different medium than the device came from. But ATT network works somewhere in the US 680 to 800 MHz and T-Mobile 10 MHz (I do not remember the exact numbers).