AT&T is selling SIM cards (for $5 after a $5 discount, with free shipping) without phones, for those among us who want to go *a la carte *on its GSM network with our own unlocked phones. Everyone is ...

You may remember earlier this year when Straight Talk stopped stocking AT&T-compatible SIM cards and you were stuck with purchasing a T-Mobile SIM card. We had many different theories as to why AT&T ...

Today we try to discuss what it means to have an unlocked phone and what to do if faced with a problem with it. This is far from a detailed explanation on the subject about why some unlocked phones ...

Have you been holding off on purchasing that shiny new Apple iPhone until someone figures out how to unlock it? While that day isn't exactly here yet, a major milestone has been achieved. By using a ...

AT&T CEO Ralph de la Vega said in an interview this week that a smaller SIM card is a "no-brainer" and his company is looking into it, but declined to make the direct connection to Apple that the ...

Apple's SIM cards let you easily switch wireless carriers, but AT&T is having none of that. I'm PCMag's managing editor for consumer electronics, overseeing an experienced team of analysts covering ...

Activate your iPhone back to AT&T if the SIM card you insert after you install blackra1n onto the device doesn't work properly. Blackra1n is a third-party program that "jailbreaks" SIM-bearing iPhones ...

You may have had AT&T SIM (Subscriber Identity Module) card problems on your iPhone before or received the notification "Airtel SIM not provisioned." This happens sometimes, and the reason is fairly ...