The document lays down guidelines for T-Mobile staff assisting Sprint customers through the transition. It explains that switching to the new carrier’s SIM is free.

T-Mobile is sending out legal notices to let its customers know that they won't be able to use a Sprint SIM card after May 1, 2023.

I'm on Sprint, and I like it. I also have an iPhone 5S, which I also like, but since I'm doing more and more Android development in my free time, I'm considering getting a Nexus 5 (or 6) since I ...

T-Mobile appears all set to eliminate any remaining traces of Sprint in a few months. A leaked company document reveals that the carrier will stop supporting legacy Sprint SIM cards on May 1, 2023 ...

Does Sprint even offer GSM service? If not, I don't see how your Razr would work. The Sanyo is a CDMA phone. IIRC, only Cingular and T-Mobile offer GSM service in the US.

In a first for US wireless carriers, Sprint and Verizon Wireless will allow iPhone 4S customers to unlock their mirco-SIM card slots, which enables use on wireless networks around the world ...