Area Code 205

Area code 205 is one of the original 86 North American Numbering Plan area codes established by AT&T on January 1, 1947. It originally covered the entire state of Alabama — one of 34 states served by a single area code — making Alabama one of the earliest jurisdictions in the NANP. The code survived 48 years without modification before its first geographic split. Source: Wikipedia — Area codes 205 and 659

The middle digit "0" in 205 follows AT&T's original rotary-dial conventions: a middle digit of 0 indicated an entire state served by a single area code. This meant 205 required 17 pulses on a rotary telephone (2+10+5), compared to just 5 pulses for New York's 212. The 17-pulse requirement was above the 14.1 average for codes created within five years of 205, suggesting it received lower dialing priority than codes assigned to more populous metropolitan areas. Source: AllAreaCodes — 205 Area Code Profile

• January 1, 1947: Area code 205 is created as one of the 86 original NANP codes. The entire state of Alabama falls under a single numbering plan area. The 205 code originally spanned from Birmingham to Mobile to Montgomery, covering all 67 Alabama counties. Source: Wikipedia
• January 15, 1995: Area code 334 is created as a geographic split from 205. Southern Alabama — including the Montgomery and Mobile LATAs — transfers to the new 334 area code. Birmingham, Huntsville, and Tuscaloosa retain 205. The split was effective at 2:00 AM CST. Permissive dialing (allowing old 205 numbers to reach 334 destinations) ended May 13, 1995. This was the first modification to the 205 NPA since its 1947 creation. Source: Wikipedia — Alabama area codes
• March 23, 1998: Area code 256 is created as a geographic split from 205. Northern and eastern Alabama — including Huntsville, Decatur, Gadsden, Anniston, Florence, and Cullman — transfers to the new 256 area code. 205 is reduced to west-central Alabama centered on Birmingham. Permissive use of 205 in 256 territory continued through September 28, 1998. Source: NANPA PL-110
• November 12, 2019: Area code 659 is added as an all-services distributed overlay for the remaining 205 territory — the first overlay in Alabama history. The Alabama Public Service Commission approved the overlay on August 7, 2018 (Docket No. 27749). Permissive 10-digit dialing began April 13, 2019; mandatory 10-digit dialing began October 12, 2019; and 659 codes became assignable on November 12, 2019. The overlay was originally proposed in 2001 but delayed by the APSC for 17 years before approval. Source: AL.com — Why Alabama may be getting a new area code

Area code 205 holds several unique distinctions within the North American Numbering Plan. From its status as one of the original 86 codes to the 17-year regulatory delay that preceded its first overlay, 205 is among the most historically significant area codes in the southeastern United States. Source: AllAreaCodes — 205 Area Code Profile

• Original Full-State Coverage Under Pre-1953 NANP Rules — The middle digit "0" in 205 indicates it originally served an entire state under the pre-1953 NANP convention where a middle digit of 0 meant full-state coverage and a 1 meant partial-state. Alabama was one of 34 states served by a single area code in 1947, and 205's middle digit "0" encoded this distinction. This rule was phased out after 1953 as the NANP expanded. Source: AllAreaCodes — 205 Area Code Profile
• 17 Rotary Pulses vs. 14.1 Average — Area code 205 required 17 pulses on a rotary telephone (2+10+5), compared to the 14.1 average for codes created within five years of 205. The higher pulse count meant 205 was prioritized lower in the original 1947 assignment — fast-dialing codes (like 212 for New York) went to larger metropolitan areas. This rotary pulse count remains a unique trivia fact about the code's origins. Source: AllAreaCodes — 205 Area Code Profile
• 96.3% Prefix Exhaustion — As of 2025, 96.3% of the 801 possible prefixes in the 205 NPA are assigned (771 active, 30 unassigned). This near-exhaustion status was a key factor in the APSC's decision to add the 659 overlay rather than risk another geographic split. Source: AllAreaCodes — 205 Area Code Profile
• 17-Year Overlay Delay — The Longest in Alabama History — The 659 overlay was first proposed in 2001 but the Alabama Public Service Commission put it on hold for 17 years before approving it in August 2018. This delay reflects the APSC's preference for exhaustible split methods over overlays, making the 659 approval the most delayed area code relief action in Alabama history. Source: AL.com — Why Alabama may be getting a new area code
• First Overlay in Alabama State History — All prior area code relief in Alabama used geographic splits: 334 split from 205 in 1995, and 256 split from 205 in 1998. The 2019 659 overlay was the first time Alabama adopted an overlay method, following the nationwide trend away from geographic splits. Source: Wikipedia — Alabama area codes
• FCC Delegated Authority via 47 CFR § 52.19 — Area code relief decisions for 205 are made by the Alabama Public Service Commission (APSC) — not the FCC directly — under federal delegated authority established by 47 CFR § 52.19. The APSC exercises this authority through its Utility Services Division, making Alabama one of many states that handle area code relief at the state level. Source: 47 CFR § 52.19 — FCC Delegated Authority

The regulatory history of area code 205 is governed by the Alabama Public Service Commission (APSC), which exercises delegated authority under the federal framework established by the FCC. Under 47 CFR § 52.19, the FCC grants state commissions the authority to resolve numbering relief matters within their states. For Alabama, the APSC serves as the primary regulator, with NANPA administering the numbering plan nationally. Source: 47 CFR § 52.19 — FCC Delegated Authority

Year	Event	Docket / Identifier	Regulatory Action & Impact
1947	NANP established	AT&T Nationwide Numbering Plan	AT&T establishes the North American Numbering Plan, assigning 205 to Alabama as the state's sole area code. APSC gains delegated authority over numbering relief for the state under federal telecommunications law. Source: Wikipedia — Area codes 205 and 659
1994–1995	334 split approved & implemented	NANPA IL-94-01-033	BellSouth files the original 1995 split request (IL-94-01-033) with NANPA. The APSC approves the split of 205 into northern (205) and southern (334) Alabama. The split follows LATA boundaries: Birmingham and Huntsville LATAs retain 205; Montgomery and Mobile LATAs transfer to 334. Effective January 15, 1995 at 2:00 AM CST. Source: Wikipedia — Alabama area codes
1998	256 split approved & implemented	NANPA PL-110	NANPA PL-110 (February 12, 1998) provides the implementation framework for the 256 split. The APSC approves splitting northern and eastern Alabama into area code 256. Effective March 23, 1998. Permissive use of 205 in 256 territory continued through September 28, 1998. Source: NANPA PL-110
2001	659 overlay first proposed	APSC Proceeding	The 659 overlay is first proposed for the 205 territory. The APSC puts the proposal on hold, preferring geographic splits over overlays. This begins a 17-year regulatory delay — the longest such delay in Alabama history. Source: AL.com — Why Alabama may be getting a new area code
2018	659 overlay approved	Docket No. 27749	The APSC formally approves the all-services distributed overlay for NPA 205, creating area code 659 (Docket No. 27749, August 7, 2018). NANPA PL-523 (October 8, 2018) establishes the implementation schedule: network preparation October 12, 2018; permissive 10-digit dialing April 13, 2019; mandatory 10-digit dialing October 12, 2019; 659 assignable November 12, 2019. Neustar Inc. serves as the FCC's Numbering Plan Administrator. Source: WBRC — New 659 area code approved to overlay 205
2019	. County Coverage Population-weighted county share based on aggregated ZCTA population (100% = total mapped population for area code 205). County Population Share Jefferson, AL 827,566 36.0% Shelby, AL 360,468 15.7% Tuscaloosa, AL 281,591 12.2% St. Clair, AL 153,077 6.7% Blount, AL 107,848 4.7% Walker, AL 81,719 3.6% Chilton, AL 77,070 3.4% Bibb, AL 58,305 2.5% Marion, AL 46,943 2.0% Lamar, AL 38,926 1.7% Pickens, AL 33,444 1.5% Winston, AL 32,330 1.4% Fayette, AL 31,492 1.4% Etowah, AL 25,108 1.1% Franklin, AL 20,127 0.9% Sumter, AL 19,179 0.8% Greene, AL 15,795 0.7% Lawrence, AL 10,815 0.5% Perry, AL 10,813 0.5% Coosa, AL 9,920 0.4% Hale, AL 9,529 0.4% Calhoun, AL 9,201 0.4% Talladega, AL 9,201 0.4% Marshall, AL 8,901 0.4% Choctaw, AL 8,873 0.4% Autauga, AL 8,634 0.4% Elmore, AL 2,899 0.1% Marengo, AL 157 0.0% Call Context High-volume metropolitan area This area code covers multiple cities and communities across a broad region in Alabama. It is one of the original area codes established when the North American Numbering Plan was created in 1947. Nearby Area Codes Area codes geographically closest to 205. 256ALHuntsvilleCentral Time (CT)Geographic 938ALHuntsvilleCentral Time (CT)Overlay 334ALMontgomeryCentral Time (CT)Geographic 483ALMontgomeryCentral Time (CT)Overlay Other Area Codes in Alabama Area codes that also serve Alabama, linked for easy comparison. 251 — Mobile 256 — Huntsville 334 — Montgomery 483 — Montgomery 659 — Birmingham 938 — Huntsville Frequently Asked Questions Common questions about area code 205 and how phone numbering works. Why might a call show this area code if the caller is elsewhere? Phone numbers are assigned based on where the number was originally provisioned, not the caller's current location. Mobile phones retain their number when users move, and businesses may use numbers from regions where they don't have a physical presence. VoIP services can also provision numbers from virtually any area code. Can mobile phones use numbers with this area code? Yes, mobile phones can have numbers from any area code in the region they were activated. Wireless carriers assign numbers from available pools regardless of phone type. When users change carriers or move to new areas, they typically keep their original number, which may have a different area code than their current location. How can I check an unfamiliar phone number? Start by looking up the area code on this site to understand its general geographic region. For the specific number, options include using your carrier's caller ID features or checking public directories. If you suspect fraud, you can report it to the FTC. To file a complaint about robocalls or spoofed numbers, visit the FCC Consumer Complaint Center. You can also register your number with the National Do Not Call Registry to reduce unwanted calls. Keep in mind that caller ID can display any name the caller chooses to set. Why do some regions use multiple area codes for the same location? When an area's pool of available phone numbers runs low, regulators may introduce an "overlay" area code that covers the same geographic territory as the original. Both codes coexist, and new numbers are assigned from whichever code has availability. This area code shares its region with area code 659. Learn more in our overlay vs split guide. Is area code 205 mainly associated with Memphis? While Memphis is a prominent city in this area code's coverage, the code serves the broader surrounding region as well. Area codes are assigned geographically and typically cover multiple cities, towns, and communities beyond any single anchor city. Is this one of the original area codes? Yes, this is one of the original area codes established in 1947 when the North American Numbering Plan (NANP) was created. The initial set of area codes was designed to cover all of North America with a unified dialing system, and many of these original codes remain in use today, though some have been split or received overlays.