AT&T among the largest US carriers, but faces serious competition from T-Mobile and Verizon. Here's how to port your number if you want to switch.

We explain how easy it is to take your phone number with you when you upgrade to a new iPhone. You can switch phones and keep the same number.

A second phone number could add an extra level of privacy to your life. You can easily get one for free.

If there’s a company phone number and catchy jingle that you can’t seem to forget, then you already understand the power of vanity numbers. Vanity numbers are phone numbers that use ...