An AT&T Internet phone number is a telephone number that is associated with an internet connection, rather than a traditional landline. When you have an AT&T Internet phone number, you can make and receive calls using your computer, smartphone, or other internet-connected device.
AT&T Internet phone numbers are becoming increasingly popular because they offer a number of benefits over traditional landlines. These benefits include lower monthly costs, more flexible calling plans, and the ability to make and receive calls from anywhere with an internet connection. The first AT&T Internet phone number was introduced in 1999, and the service has grown in popularity ever since.