Texas Area Codes: All 29 Codes by City and Region

Texas has 29 area codes in service as of 2026 — the second-most of any US state, behind only California’s 41. All 29 are geographic codes tied to a metro or region: six serve Dallas–Fort Worth, five serve Houston, and the rest divide the state from the Panhandle to the Rio Grande Valley.

Every code below comes straight from NANPA’s NPA database, the registry that governs what an area code is and where it applies. The newest entry is 621, a Houston overlay in service since January 23, 2025. Nothing else is scheduled — no Texas code is currently assigned but waiting to launch.

Dallas–Fort Worth: six codes, two families

The metroplex runs on two separate overlay families that never mix: Dallas and the eastern suburbs on one side, Fort Worth and the west on the other.

Code	Territory
214	Dallas’s original 1947 code — the city and eastern metroplex
469	First Dallas overlay (1999); identical footprint to 214 and 972
972	The 1996 suburban split code, a full Dallas overlay since 1999
945	Newest Dallas code (2021); same shared territory
817	Fort Worth, Arlington, and the western metroplex, since 1953
682	Fort Worth overlay (2000); same footprint as 817

Houston: five interchangeable codes

Greater Houston is the largest overlay complex in Texas — five codes covering one footprint from the urban core out through Harris, Fort Bend, Montgomery, and Galveston counties.

Code	Territory
713	Houston’s original 1947 code — the urban core’s oldest stock
281	The 1996 suburban ring code, an overlay since 1999
832	First full Houston overlay (1999)
346	Fourth Houston code, added 2014
621	Fifth Houston code and the newest in Texas — live January 2025

Austin

Code	Territory
512	Austin, Round Rock, Georgetown, San Marcos — an original 1947 code
737	Austin overlay since 2013; same territory as 512

San Antonio

Code	Territory
210	San Antonio and Bexar County since 1992
726	San Antonio overlay since 2017; same footprint as 210

West Texas and the Panhandle

Code	Territory
806	Amarillo, Lubbock, and the Panhandle–South Plains
915	El Paso and far West Texas — an original 1947 code
432	Midland, Odessa, and the Permian Basin (2003 split from 915)
325	Abilene, San Angelo, and the Big Country (2003 split from 915)

East Texas and the Gulf Coast

Code	Territory
903	Tyler, Longview, Sherman, and Texarkana — northeast Texas
430	Overlay on the 903 territory since 2003
936	Conroe, Huntsville, Nacogdoches, and Lufkin — the Piney Woods
409	Beaumont, Port Arthur, and Galveston — the Golden Triangle coast

South Texas and the border

Code	Territory
361	Corpus Christi, Victoria, and the Coastal Bend
956	Laredo, McAllen, Harlingen, and Brownsville — the Rio Grande Valley
830	The Hill Country and border ring around San Antonio — New Braunfels, Kerrville, Fredericksburg, Del Rio, Eagle Pass

Central and North Texas

Code	Territory
254	Waco, Killeen, Temple, and Fort Hood
940	Wichita Falls, Denton, and the Red River counties
979	Bryan–College Station, the Brazos Valley, and Lake Jackson

The six Texas overlay families

Seventeen of the 29 codes share ground with at least one other code. When codes overlay, they cover identical territory and every local call is ten digits:

• Dallas: 214, 469, 945, 972
• Houston: 281, 346, 621, 713, 832
• Fort Worth: 682, 817
• Austin: 512, 737
• San Antonio: 210, 726
• Northeast Texas: 430, 903

The other twelve codes stand alone. A number in an overlay family tells you the metro but not the neighborhood — a 346 number is no less Houston than a 713 one, just newer.

How Texas gets new area codes

An area code runs out of numbers when its prefixes — the NXX in NPA-NXX — are all assigned. NANPA then adds relief: historically a geographic split, where one region keeps the old code and the other is renumbered, or an overlay, where a new code lands on the same footprint and existing numbers never change. Texas has not split a code since 325 and 432 were carved out of 915 in 2003; every addition since — 346, 737, 726, 945, 621 — has been an overlay. As of August 2026, NANPA lists exactly one Texas code in relief planning: 956 in the Rio Grande Valley, with no new code assigned yet.

Texas numbers for business

Area code is identity in Texas. A 214 number reads Dallas, a 713 reads Houston, a 512 reads Austin — and answer rates follow, which is the entire logic of local presence dialing. The practical playbook: pick the oldest code in the target metro when inventory allows, because 1947-vintage codes carry recognition the newer overlays have not earned yet.

SIPNEX operates under its own direct FCC carrier authorization and fills orders for local DID numbers across the Texas codes above, delivered on SIP trunking that scales from a single number to a full metro footprint. Outbound calls are signed at STIR/SHAKEN A-level under our own SP certificate, and we are registered in the FCC’s Robocall Mitigation Database — so a Texas caller ID also survives carrier analytics.

Texas area code FAQ

How many area codes does Texas have?

Texas has 29 area codes in service as of 2026, according to NANPA’s NPA database — second only to California’s 41. Six serve Dallas–Fort Worth, five serve Houston, two each serve Austin and San Antonio, and the remaining fourteen cover the rest of the state.

What is the newest area code in Texas?

621, the fifth Houston overlay, in service since January 23, 2025. It shares identical territory with 713, 281, 832, and 346. Before 621, the most recent addition was Dallas’s 945, in service from January 2021 onward.

What were the original Texas area codes?

Texas received four codes when the numbering map was first drawn in 1947: 214 for Dallas and the northeast, 512 for Austin and south-central Texas, 713 for Houston and the southeast, and 915 for El Paso and the west. All four are still in service, shrunk by decades of splits and overlays.

Is ten-digit dialing required across Texas?

Every overlay area does — Dallas, Houston, Fort Worth, Austin, San Antonio, and the 430/903 region all dial ten digits for local calls. Seven standalone codes — 254, 361, 409, 806, 830, 915, and 940 — also moved to ten digits during the nationwide 988 transition. NANPA still lists seven-digit local dialing only in 325, 432, 936, 956, and 979, so ten digits is the safe default statewide.

Which Texas area code gets a new overlay next?

956 in the Rio Grande Valley is the only Texas code NANPA currently lists with relief planning in progress. No new code has been assigned or scheduled yet, so 621 remains the most recent addition until that planning produces an overlay.

---

Need a Dallas, Houston, or any other Texas number that actually connects? Contact SIPNEX or see pricing — or call us at (833) 665-2220 and we’ll provision the exact codes your market expects.