Some carriers are using eSIM for more than just fast signups and phone activations. A few networks also offer eSIM trials, ...

If you're traveling abroad, how do you stay connected? Do you use a travel eSIM, a local SIM, or your own carrier? I tested three eSIMs on a trip to find out.

The VOS 5G is a compact network adapter that uses a network SIM card to connect to a cellular network in the same way as your ...

Per T-Mobile, there can be a variety of reasons why a newly purchased phone would not have service. From chipped SIM cards to a line that has not been completely registered, or simply being in a ...

If you're tired of paying too much for your cell phone plan, use CR's advice to shave a little off your bill or save $500 a ...

Gigs, a platform that enables any company to become a MVNO, has raised $73 million in a Series B round of funding.

Technical vulnerabilities in the telecommunications infrastructure, particularly the Signaling System 7 (SS7) protocol, can enable hackers to redirect SMS messages. Additionally, SMS-based 2FA remains ...

The CMF Phone 1 captures some of the fun of modular smartphones for a fraction of the usual price. But US buyers might want ...

The rise of the eSIM has also made the need to hunt down a physical SIM card a thing of the past ... most premium unlimited plan takes a page from T-Mobile's playbook and includes international ...

The API certified by KT can verify the history of SIM card changes and roaming status ... Overseas, 12 major ...