Look Up Arkansas Area Codes

Area Codes Serving Arkansas

Four codes are active in the state: 501, 479, 870, and 327. Three of them are geographic, meaning each one owns its own patch of the map. The fourth, 327, is an overlay that shares the 870 territory instead of claiming new ground. The 501 code holds central Arkansas and the capital. The 479 code covers the northwest and the western border. The 870 and 327 pair covers everything else, which is most of the state's land area.

That layout is the product of two splits and one overlay, all driven by the same problem: the state kept running out of numbers. Each event is dated in the table below.

Arkansas Area Code Coverage by Region

Because the whole state is the subject here, the mapping works by region rather than by neighborhood. Think of Arkansas in three bands. The center belongs to 501, which also explains why state government numbers almost always start with it: agency headquarters cluster in Little Rock. The northwest growth corridor and the Fort Smith border country run on 479. Everything wrapping around those two regions, from the Missouri line down through the Delta to the Louisiana border, answers on 870 or its new twin 327.

• 501 region - Little Rock, North Little Rock, Conway, Hot Springs, Benton, Bryant, Searcy, Cabot, Jacksonville, and the surrounding central counties
• 479 region - Fayetteville, Springdale, Rogers, Bentonville, Fort Smith, and the Russellville area along the Arkansas River Valley
• 870 / 327 region - Jonesboro, Mountain Home, Pine Bluff, Texarkana, El Dorado, Magnolia, Monticello, West Memphis, Forrest City, Camden, Harrison, and Helena-West Helena

Exact street-level boundaries follow rate centers, not city limits, so a few edge communities can surprise you. For a precise answer on one number, the prefix records covered further down settle it.

What Each Arkansas Area Code Signals

Each code carries its own character, and reading it helps place a caller before you even answer. A 501 number leans official. State government concentrates in Little Rock. So the agencies serving all 75 counties, from the Department of Finance and Administration to the State Police, answer on 501 lines even when the caller lives in Texarkana. Half a century as the state's only code also left 501 on plenty of older business and family lines across the central counties.

The 479 code reads as the growth corridor. It covers the University of Arkansas in Fayetteville, the corporate cluster around Bentonville, and the Fort Smith border country. Three State Police troops answer on 479 numbers, and so does Arkansas Children's Northwest in Springdale. The 870 code covers the widest ground of the four. NANPA's planning letter describes it as northern, eastern, and southern Arkansas, taking in El Dorado, Mountain Home, Jonesboro, Pine Bluff, Monticello, and Magnolia. Most rural Arkansas answers on 870.

Then there is 327, the code with no history yet. It only appears on lines activated since early 2024, all inside the 870 footprint. Seeing it simply means the number is new.

The 327 Overlay on Arkansas's 870 Region

The newest Arkansas area code arrived in 2024, and it did not redraw any lines. When the 870 region was projected to exhaust its supply of numbers, the Arkansas Public Service Commission approved 327 as an overlay. Existing 870 customers kept their numbers exactly as they were. New numbers in the same towns can now come from either code. The PSC announcement from July 2023 spelled out that trade-off when it introduced the new code.

The announcement above is the official record of the decision. The practical fallout for residents was mostly about equipment. Anything programmed with seven-digit numbers had to be updated: alarm panels, fax machines, medical alert devices, voicemail settings, call forwarding, PBX systems, and speed-dial lists. A neighbor's new phone line showing 327 is now completely normal in Jonesboro or Pine Bluff.

Overlay vs Split in Arkansas Numbering

Arkansas has lived through both relief methods, which makes it a useful case study. The 870 and 479 codes were splits: a boundary was drawn, and phones on the new side changed area codes. The 327 code is an overlay: no boundary, no forced number changes, but everyone dials ten digits forever after. Regulators have leaned toward overlays nationally because nobody has to reprint letterhead or notify every contact they have.

Overlay

A second area code added to the same geography. Everyone keeps their existing number. Mandatory 10-digit dialing applies to all local calls.

Split

The old area code keeps part of the territory and a new code takes the rest. Phones in the new region change area codes.

Permissive Dialing

A transition window when both the old and new dialing patterns still connect. It ends on a fixed cutover date.

Note: NANPA, the North American Numbering Plan Administrator, manages this planning nationally, while the state PSC picks which relief method Arkansas actually uses.

Ten-Digit Dialing in Arkansas

All local calls statewide now require the area code, but the three regions got there on different schedules and for different reasons. In 501 and 479, the trigger was the national 988 crisis line. Some local prefixes there started with 988, so seven-digit dialing had to end before the short code could work, and the FCC's ten-digit dialing guide covers how that transition worked. Those regions switched in 2021. In the 870 region, seven-digit dialing survived until the overlay made it impossible, ending January 19, 2024. During the run-up, both patterns worked for a while, the permissive dialing window that softens every cutover. Once the window closed, a seven-digit attempt stopped connecting and callers got a recording instead.

Area codes are only one family of codes Arkansans dial. The N11 short codes, star codes, and international prefixes all follow their own rules, and the Arkansas phone codes reference walks through each of them.

Arkansas Area Code History

The timeline is short but eventful. Arkansas ran on a single code for half a century, then added three more within 27 years. Each date below changed how some part of the state dials.

Prefixes Inside Arkansas Area Codes

The three digits after the area code are the prefix, technically the NXX or central office code. Prefixes once tied tightly to a place, and in Arkansas some patterns still show. The 501-682 prefix runs all through state government in Little Rock. The 479-575 prefix belongs to the University of Arkansas campus in Fayetteville, and 870-575 shows up on University of Arkansas at Pine Bluff lines. Treat these as clues rather than proof, since number portability lets a number move between carriers while keeping its prefix.

The authoritative source for prefix assignments is NANPA's central office code assignment records, downloadable by state and sorted by code and prefix.

Those records show which carrier each Arkansas prefix was assigned to and which rate center it belongs to. They are technical files meant for the industry, but they answer the question no consumer site can: whether a given prefix officially exists.

Future Area Code Relief for Arkansas

Nothing new is scheduled right now. With 327 freshly opened, the 870 region has numbering room for years, and NANPA's long-range discussions about eventual statewide overlay or boundary-elimination concepts for Arkansas carry no public implementation date. When the next relief project does come, the pattern is predictable: NANPA forecasts the exhaust, publishes a planning letter, and the Arkansas PSC approves the method and the schedule.

For residents, a future overlay would mean what 327 meant. Existing numbers stay put, new numbers arrive under a new code, and dialing habits do not change since ten digits is already the statewide rule.

Note: Relief projections shift with demand, so a code that looks decades from exhaust can move up the schedule if growth accelerates.

Verifying an Arkansas Area Code

Scam callers sometimes invent area codes, or borrow real ones from the wrong state. Verifying takes a minute. Check the code against NANPA's official records to confirm it exists and where it is assigned, and use the FCC's consumer references for dialing rules. If a caller claims to be local but shows a code that is not 501, 479, 870, or 327, that claim already has a problem.