830
Area code
Statusin service
Introduced1997-07-07
JurisdictionTX, US
Local dialing10D
Time zoneCentral
Last verified2026-09-17
Utilization 64.3% of assignable prefixes assigned
As of 09/17/2026
0%509 of ~792 assignable NXX values (200–999 excl. N11)100%
Prefix-level assignment does not equal number-level exhaustion; thousands-block pooling extends capacity. First assignment on record 2001-02-20, most recent 2026-08-21.
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 | 71 | 13.9% |
| 02 | NEW CINGULAR WIRELESS PCS, LLC - IL | 58 | 11.4% |
| 03 | FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS | 48 | 9.4% |
| 04 | PEERLESS NETWORK OF TEXAS, LLC - TX | 34 | 6.7% |
| 05 | ONVOY, LLC - TX | 28 | 5.5% |
| 06 | T-MOBILE USA, INC. | 27 | 5.3% |
| 07 | GUADALUPE VALLEY TEL. COOP., INC. | 27 | 5.3% |
| 08 | LEVEL 3 COMMUNICATIONS, LLC - TX | 25 | 4.9% |
| 09 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 23 | 4.5% |
| 10 | MATRIX TELECOM, LLC. S/I/I TNCI - TX | 14 | 2.8% |
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- 1997-07-07Area code 830 entered service (created from 210).
Planning letters & orders
Primary documents| Date | Document | Subject |
|---|---|---|
| 2021-01-08 | PL-556 ↗ | Transition to 10-digit dialing (for 988 as 3-digit access to National Suicide Prevention Lifeline) – supersedes PL-544 |
| 2020-08-17 | PL-544 ↗ | Transition to 10-digit dialing (for 988 as 3-digit access to National Suicide Prevention Hotline |
| 1997-01-22 | PL-035 ↗ | NANP-Split of 210 (Texas) Numbering Plan Area (NPA) |