Alabama has 7 active area codes as of 2026, covering the state through a mix of original 1947 assignments, geographic splits, and modern overlays. This guide walks through the full list, which regions each code serves, the order they came online, and where new codes are most likely to land next.
The Short Answer
Alabama currently has 7 active area codes in service. The count reflects a combination of population growth, the rise of mobile lines, and the way modern numbering allocates blocks — every line activated, whether a cellphone, a business desk line, a VoIP number, or a connected device, consumes a slot in the pool.
By population, Alabama ranks #24 nationally with roughly 5,157,699 residents as of the most recent estimates. That puts the state’s area code count in line with its population peers — denser, faster-growing states need more codes; smaller states need fewer.
The Full List of Alabama Area Codes
The active area codes serving Alabama are listed below, in numerical order. Where a code is an overlay or a split-off from an earlier code, that relationship is noted.
- 205 — Central and west-central Alabama (Birmingham, Tuscaloosa, Hoover)
- 251 — Southwestern Alabama (Mobile, Baldwin County, Gulf Shores) (split from 334)
- 256 — Northern and east-central Alabama (Huntsville, Decatur, Florence, Anniston) (split from 205)
- 334 — South-central and southeastern Alabama (Montgomery, Auburn, Dothan) (split from 205)
- 483 — South-central and southeastern Alabama (Montgomery, Auburn, Dothan) (overlay of 334)
- 659 — Central and west-central Alabama (Birmingham, Tuscaloosa) (overlay of 205)
- 938 — Northern and east-central Alabama (Huntsville area) (overlay of 256)
How Alabama’s Area Codes Grew Over Time
Alabama received its first area code, 205, when the North American Numbering Plan launched in 1947. That single code initially covered the entire state, and subsequent splits and overlays narrowed it over the decades that followed.
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- 1995 — 334 split off from 205 on January 15, 1995, for the southern half of the state, including the Montgomery, Auburn-Opelika, and Dothan areas. It was Alabama's first new area code since 1947.
- 1998 — 256 split off from 205 for northern and east-central Alabama, including Huntsville, Decatur, Florence, and Anniston.
- 2001 — 251 split off from 334 on June 18, 2001, for southwestern Alabama, including Mobile, Baldwin County, and the Gulf Coast.
- 2010 — 938 activated as an overlay of 256 in northern and east-central Alabama, introducing mandatory ten-digit dialing to that region.
- 2019 — 659 activated as an overlay of 205 in central and west-central Alabama, having first been proposed back in 2001.
- 2026 — 483 activated on February 23, 2026, as an overlay of 334 in central and southeastern Alabama, after the Alabama Public Service Commission approved it in March 2024.
Why Alabama Has Multiple Area Codes
A single area code can hold roughly 7.9 million possible phone numbers in theory — 792 valid central office codes (the second three digits) multiplied by 10,000 line numbers each. In practice the usable count is lower, because blocks of numbers are reserved, withheld, or assigned in bulk to carriers that may never fully use them. When the pool of available numbers in an area code falls below the threshold the North American Numbering Plan Administrator (NANPA) tracks, the state requests relief, and either a split or an overlay is approved.
Alabama’s population of roughly 5,157,699 residents would, on its own, fit comfortably inside a single area code’s capacity. The reason 7 codes are needed instead is that every adult typically carries at least one mobile line, many households have multiple lines per person, businesses concentrate phone numbers at extreme density, and connected devices, VoIP services, and second-line apps all draw from the same pool. The math compounds quickly.
Alabama Area Codes by Region
Birmingham and central Alabama (205, 659): Birmingham, Tuscaloosa, Hoover, Jasper, and the west-central counties. 205 is the original 1947 code; 659 overlay added in 2019.
Northern Alabama (256, 938): Huntsville, Decatur, Florence, Muscle Shoals, Gadsden, and Anniston. 256 split off from 205 in 1998; 938 overlay added in 2010.
Montgomery and southeastern Alabama (334, 483): Montgomery, Auburn, Opelika, Dothan, Phenix City, Selma, and the central-southeast region. 334 split off from 205 in 1995; 483 overlay added in 2026.
Southwestern Alabama (251): Mobile, Baldwin County, Gulf Shores, and the Gulf Coast counties. Split off from 334 in 2001.
What’s Next for Alabama Area Codes
Alabama’s most recent relief action was the 483 overlay of 334, which went into service on February 23, 2026 because numbering resources in the 334 area code were projected to exhaust by the third quarter of 2026. With that overlay in place, the central and southeastern region now has a long runway. The Birmingham (205/659) and northern (256/938) overlay complexes added in 2019 and 2010 respectively are not on NANPA’s near-term relief schedule, and no further Alabama numbering plan area is currently projected to need relief in the next several years.
Frequently Asked Questions
How many area codes does Alabama have right now?
Alabama has 7 active area codes in service across the territory it covers, including any overlays that share geography with an older code.
What is the oldest area code in Alabama?
205 is the oldest active area code in Alabama, assigned in 1947 when the North American Numbering Plan launched. It remains in service today, though its geographic footprint has typically been reduced by subsequent splits and overlays.
What is the newest area code in Alabama?
The most recent area code addition to Alabama was 483, activated in 2026. New phone lines provisioned in its service area are increasingly drawn from this code as older overlays approach exhaustion.
Why does Alabama need so many area codes?
Population growth combined with the proliferation of mobile lines, business direct-dial numbers, VoIP services, and connected devices has exhausted older codes faster than the original 1947 plan anticipated. Each new area code adds roughly 7.9 million additional phone numbers to the regional pool.
How many area codes does Alabama have in 2026?
Alabama has seven active area codes as of 2026: 205, 251, 256, 334, 483, 659, and 938. The newest, 483, went into service on February 23, 2026, as an overlay of 334 in the Montgomery and southeastern region.
What is the 483 area code in Alabama?
483 is an overlay of the 334 area code, covering the same central and southeastern Alabama region, including Montgomery, Auburn, Dothan, Selma, and Phenix City. It went into service on February 23, 2026, after the 334 code began running short of available numbers. Existing 334 numbers did not change, but new lines in the region may be assigned a 483 number, and ten-digit dialing is required.
Which area code covers Birmingham?
Birmingham is served by 205, the original Alabama area code from 1947, along with its overlay 659, added in 2019. Both cover Birmingham, Tuscaloosa, and west-central Alabama, and new lines may be assigned either code.
Which area code covers Mobile?
Mobile and southwestern Alabama use 251, which split off from 334 in 2001. It also covers Baldwin County, Gulf Shores, and the surrounding Gulf Coast counties.
Do I have to dial the area code for local calls in Alabama?
Yes. All of Alabama now requires ten-digit dialing (area code plus the seven-digit number) for local calls. The 334 region became the last to switch, with mandatory ten-digit dialing taking effect January 23, 2026, ahead of the 483 overlay.
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