Area codes 716 and 624

Area codes 716 and 624 are telephone area codes in the North American Numbering Plan (NANP) for Buffalo, Niagara Falls, and four surrounding counties in western New York.

When the American Telephone and Telegraph Company (AT&T) devised the first nationwide telephone numbering plan for Operator Toll Dialing in the 1940s, New York state was initially divided into five numbering plan areas, the most of any state, assigning a distinct area code to each.

This area code was therefore scheduled to transition to ten-digit dialing by October 24, 2021.

[2] A 2022 analysis by the NANP Administrator determined that area code 716 will exhaust its central office prefixes in 2024.

[3] As a result, New York Public Service Commission approved area code 624, and was assigned to form an all-service overlay complex in the 716 area, with an in-service date of November 16, 2023.