There are a total of 335 area codes in the United States. Of these, 317 are geographic area codes, and 18 are non-geographic area codes.
- Geographic area codes are used to identify a specific geographic area, such as a state, city, or region.
- Non-geographic area codes are used for special purposes, such as toll-free numbers, vanity numbers, and government services.
Area code 363 is a new area code that was added to the United States in 2023 as an overlay to area code 516. This means that the same geographic area will now have two area codes: 516 and 363.
An overlay is a way to add new telephone numbers to an area without having to change the existing area code. In this case, the 516 area code was running out of available numbers, so the 363 overlay was added to provide more numbers.
Customers in the 516 area code will not be required to change their existing phone numbers or how they dial their calls. They will continue to dial the area code and phone number for all local calls, as they do today, within and between the 516 and new 363 area codes.
The 363 overlay is expected to provide telephone number relief in the 516 area code for approximately 49 years.
Here are the top 10 most popular area codes in the United States:
- 310 (Los Angeles, CA)
- 212 (New York City, NY)
- 305 (Miami, FL)
- 702 (Las Vegas, NV)
- 202 (Washington, DC)
- 415 (San Francisco, CA)
- 404 (Atlanta, GA)
- 312 (Chicago, IL)
- 213 (Los Angeles, CA)
- 646 (New York City, NY)