After you purchase and use your cellphone for an extended period of time, you can change networks. However, the phone that you're currently using may not be offered on that network. If you wish to ...

What's the SIM unlock policy for Verizon, T-Mobile or AT&T? These are each carrier's current device unlock policy as of 2026.

While a software-based unlock (allowing use on unauthorized carriers) for the iPhone 3G has yet to materialize, one recognized vendor says it plans to ship a hardware-based SIM unlock for the device ...

If you’ve acquired your iPhone through a contractual agreement with a mobile carrier, there’s a likelihood that the device is locked to that specific service provider. In order to switch to a ...

Share on Facebook (opens in a new window) Share on X (opens in a new window) Share on Reddit (opens in a new window) Share on Hacker News (opens in a new window) Share on Flipboard (opens in a new ...

What's the SIM unlock policy for Verizon, T-Mobile or AT&T? These are each carrier's current device unlock policy as of 2026.

CNET editor Dong Ngo has been involved with technology since 2000, starting with testing gadgets and writing code for CNET Labs' benchmarks. He now manages CNET San Francisco Labs, reviews 3D printers ...

Business travel means traveling to foreign countries that work far different from the US. Having cheap internet access can make a lot of things, from navigating a new city to sending emails, a lot ...

Now that Apple’s iPhone is finally on sale, the race is on to see who can unlock it. Locked phones can only be used with cellular service from one carrier, a move designed to guarantee carriers ...