Texas area codes — detailed data

NANPA NPA database, current as of July 28, 2026.

Full numbering detail for every active Texas area code: lineage (which code it split from), NANPA exhaust projections, dialing plans and jeopardy status. This is the working data behind the overview page.

Aggregate footprint: the state's 29 geographic codes currently carry 15,941 active NXX prefixes over 1,706 rate-center anchorings, with 11,742 prefixes in thousands-block pooling. 26 of the codes serve territory inside FCC top-100 metropolitan statistical areas.

Lineage: 210 came out of 512 in 1992; 254 came out of 817 in 1997; 281 came out of 713 in 1996; 325 came out of 915 in 2003; 346 came out of 832 in 2014; 361 came out of 512 in 1999; 409 came out of 713 in 1982; 430 came out of 903 in 2003; 432 came out of 915 in 2003; 469 came out of 214 in 1999; 621 came out of 346 in 2025; 682 came out of 817 in 2000; 726 came out of 210 in 2017; 737 came out of 512 in 2013; 830 came out of 210 in 1997; 832 came out of 713 in 1999; 903 came out of 214 in 1990; 936 came out of 409 in 2000; 940 came out of 817 in 1997; 945 came out of 214 in 2021; 956 came out of 210 in 1997; 972 came out of 214 in 1996; 979 came out of 409 in 2000. The remaining codes (214, 512, 713, 806, 817, 915) date back to the plan's early assignments.

Dialing plans: 24 codes use plain ten-digit local dialing (10D); 5 still allow seven-digit local calls. Overlay territories always dial ten digits; the 2021 988-hotline transition moved most others to ten digits as well.

The tightest capacity in the state is 956, projected to exhaust 2Q 2029.

Status: 1 with relief planning in progress — details in the table.

Code-by-code notes

281 — carved from 713; overlaid by 346/621/713/832; exhaust forecast 2Q 2039.

469 — carved from 214; overlaid by 214/945/972; exhaust forecast 3Q 2035.

832 — spawned 346; carved from 713; overlaid by 281/346/713; exhaust forecast 2Q 2039.

713 — spawned 409, 281, 832; overlaid by 281/346/621/832; exhaust forecast 2Q 2039.

972 — carved from 214; overlaid by 214/469/945; exhaust forecast 3Q 2035.

210 — spawned 830, 956, 726; carved from 512; overlaid by 726; exhaust forecast 1Q 2072.

512 — spawned 210, 361, 737; overlaid by 737; exhaust forecast 1Q 2044.

214 — spawned 903, 972, 469, 945; overlaid by 469/945/972; exhaust forecast 3Q 2035.

817 — spawned 254, 940, 682; overlaid by 682; exhaust forecast 2Q 2041.

903 — spawned 430; carved from 214; overlaid by 430; exhaust forecast 1Q 2047.

Time-zone note: 915 spans two time zones — rare among NANP codes.

Detailed numbering data for Texas area codes
Code In service Split from Exhaust (NANPA) Local dialing Status
210 1992-11-01 512 1Q 2072 10D Normal
214 1947-01-01 — 3Q 2035 10D Normal
254 1997-05-25 817 1Q 2032 10D Normal
281 1996-11-02 713 2Q 2039 10D Normal
325 2003-04-05 915 2Q 2052 7D Normal
346 2014-07-01 832 2Q 2039 10D Normal
361 1999-02-13 512 4Q 2048 10D Normal
409 1982-11-01 713 4Q 2051 10D Normal
430 2003-02-15 903 1Q 2047 10D Normal
432 2003-04-05 915 3Q 2089 7D Normal
469 1999-07-01 214 3Q 2035 10D Normal
512 1947-01-01 — 1Q 2044 10D Normal
621 2025-01-23 346 2Q 2039 10D Normal
682 2000-10-07 817 2Q 2041 10D Normal
713 1947-01-01 — 2Q 2039 10D Normal
726 2017-10-23 210 1Q 2072 10D Normal
737 2013-07-01 512 1Q 2044 10D Normal
806 1957-01-01 — 2Q 2032 10D Normal
817 1953-01-01 — 2Q 2041 10D Normal
830 1997-07-07 210 4Q 2073 10D Normal
832 1999-01-16 713 2Q 2039 10D Normal
903 1990-11-04 214 1Q 2047 10D Normal
915 1947-01-01 — 1Q 2080 10D Normal
936 2000-02-19 409 4Q 2067 7D Normal
940 1997-05-25 817 4Q 2049 10D Normal
945 2021-01-15 214 3Q 2035 10D Normal
956 1997-07-07 210 2Q 2029 7D Relief planning
972 1996-09-14 214 3Q 2035 10D Normal
979 2000-02-19 409 4Q 2068 7D Normal

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