TX
United States geographic area code, in service since 1947-01-01. Part of the 214/469/945/972 overlay complex — ten-digit dialing required.
Created 903. Created 972. Created 469. Created 945. Overlaid with 469, 945, 972 .
Prefix-level assignment does not equal number-level exhaustion; thousands-block pooling extends capacity. First assignment on record 2001-01-03, most recent 2026-04-14.
Area codes serve rate-center geographies, not municipal boundaries. “TX” identifies the jurisdiction, not an exact city footprint.
Top assignees
Ranked by assigned prefixes · initial assignee ≠ current carrier| Rank | Assignee | Prefixes | Share |
|---|---|---|---|
| 01 | SOUTHWESTERN BELL | 277 | 34.7% |
| 02 | NEW CINGULAR WIRELESS PCS, LLC - IL | 110 | 13.8% |
| 03 | T-MOBILE USA, INC. | 71 | 8.9% |
| 04 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 50 | 6.3% |
| 05 | METROPCS, INC. | 41 | 5.1% |
| 06 | ONVOY, LLC - TX | 34 | 4.3% |
| 07 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 32 | 4% |
| 08 | SPOK, INC. | 31 | 3.9% |
| 09 | LEVEL 3 OF TELECOM OF TEXAS, LLC - TX | 24 | 3% |
| 10 | FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS | 16 | 2% |
Important: these are initial assignees from NANPA CO-code records — the carrier a prefix was originally assigned to. Because of number portability, the current serving carrier of any individual number may differ.
Change history
Recorded events for this NPA- 1947-01-01Area code 214 entered service.
Planning letters & orders
Primary documents| Date | Document | Subject |
|---|---|---|
| 2020-04-08 | PL-537 ↗ | NPA 945 to Overlay 214/469/972 (Texas) |