Number Planning Area (NPA) and NXX

Number Planning Area (NPA), also known as an Area Code, is the three-digit number that identifies the telephone service region. For example, if you have the phone number 555-101-1234, the NPA would be 555.

While the Area Code identifies the telephone service region, it’s possible for a single NPA to be present in more than one rate center. For example, the 305 area code in Florida is present in the following rate centers: Keys, Miami, Homestead, North Dade, and Perrine. If you order a number in NPA 305, you can get a telephone number in any of those rate centers.


Where We Talk About NPA

On our site

In our downloads

Terms Related to NPA


Learn More About Bandwidth’s Phone Number Features

By continuing to use this site, you are agreeing to our Privacy Policy and the use of cookies. Please click the continue button to close this notice. Continue