A SIM card, or subscriber identity module, is a small card in your cellphone that lets you place phone calls, send text ...

If you need to find out your iPhone's carrier without a SIM card installed, you can do so through the Settings app.

Nigeria has given telecommunication providers an extra eight weeks to add valid National Identification Numbers (NIN) to every SIM card registered in the country, according to a statement from the ...

Nigeria has directed all telecommunications firms, including giants such as Airtel and MTN, to stop selling SIM cards while it audits rule compliance, according to a statement from the Nigeria ...

You might think skipping travel insurance saves money, but this could be a grave mistake. If something goes wrong—say you get sick or lose your luggage—you'll be on the hook for unexpected expenses.

No one likes dropping offline, especially if you need to stay in contact. Get expert tips for boosting your cellphone signal on iPhone or Android.

The last thing any traveler needs is for their phone signal to drop out at the wrong moment. Luckily, these tips will help ...

SIM swap attacks are rising fast. Learn how criminals exploit SMS codes and how to protect your phone, banking, and email ...

The MLB postseason field has been set with wild card matchups due up on Tuesday. Eight teams will battle it out to make it to the divisional round, but not all of them will face the same degree of ...

CNN chief law enforcement and intelligence analyst John Miller and CNN law enforcement analyst and former Secret Service agent Jonathan Wackrow addressed six key questions related to the investigation ...

Airalo is an excellent eSIM with widespread coverage across the U.S. It offers affordable data plans for use in all 50 U.S.

The agency says it found a network of some 300 servers and 100,000 SIM cards—enough to knock out cell service in the NYC area ...