All 378 US Area Codes in One Directory

There are 378 active geographic area codes in the United States as of 2026, covering all 50 states, the District of Columbia, and the U.S. territories. This count excludes toll-free codes (800, 888, 877, 866, 855, 844, 833), premium 900 numbers, and other non-geographic codes.

California has the most area codes of any state, with 41 active codes. Texas and Florida follow. High-population states accumulate codes as regions split and overlay codes are added when the existing supply of phone numbers runs low.

The newest US area codes entered service in 2026: 465 (Brooklyn, Queens, the Bronx, Staten Island, Marble Hill (overlay of 718/347/929)) and 471 (Tupelo, Oxford region (overlay of 662)) and 483 (Montgomery region (overlay of 334)). New codes are added as overlays when an existing region approaches exhaustion of its number supply.

The oldest area codes date to the 1947 launch of the North American Numbering Plan, when 86 codes were assigned across the US and Canada. 74 of the original US codes are still in service today, including 212 (New York City), 213 (Los Angeles), 312 (Chicago), and 202 (Washington, D.C.).

New York City uses six active area codes: 212, 646, and 332 in Manhattan; 718, 347, and 929 in Brooklyn, Queens, the Bronx, and Staten Island; and 917, which covers all five boroughs. 212, the original 1947 Manhattan code, is the most sought-after area code in the country.

In a split, a region is divided and one part keeps the old code while the other gets a new one, so some customers change numbers. In an overlay, a new code is added on top of the same territory; nobody changes numbers, but ten-digit dialing becomes mandatory. Nearly all new codes since the early 2000s have been overlays.

Yes. Carriers assign numbers from their local inventory by default, but number providers sell phone numbers in specific area codes regardless of where you live. Businesses commonly buy numbers in prestige codes like 212 or in the area codes of markets they serve.