NumberResearchThousands-blocks in 830-254
This prefix’s ten 1,000-number blocks and who holds each — 10 on record · from the daily NANPA thousands-block report, 09/20/2026
The ten 1,000-number thousand-blocks inside prefix 830-254 and who was initially assigned each. Under pooling these blocks often belong to different carriers — the single prefix-level “assignee” is usually just the pool / code holder, not who holds the numbers. ← all 830 blocks
Most active assignees, all time — NPA 830
New assignments by month
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2010-09-23 | 830-254-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | KARNESCITY | TX |
| — | 830-254-1XXX | 1000–1999 | Reserved | SOUTHWESTERN BELL | 9533 | KARNESCITY | TX |
| 2011-12-06 | 830-254-2XXX | 2000–2999 | Assigned | SMARTCOM TELEPHONE, LLC | 4866 | KARNESCITY | TX |
| — | 830-254-3XXX | 3000–3999 | Reserved | SOUTHWESTERN BELL | 9533 | KARNESCITY | TX |
| 2018-09-11 | 830-254-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - TX | 004F | KARNESCITY | TX |
| 2014-05-27 | 830-254-5XXX | 5000–5999 | Assigned | ONVOY, LLC - TX | 903C | KARNESCITY | TX |
| 2012-01-23 | 830-254-6XXX | 6000–6999 | Assigned | FOREMOST TELECOMMUNICATIONS CORPORATION - TX | 319D | KARNESCITY | TX |
| 2016-04-25 | 830-254-7XXX | 7000–7999 | Assigned | ONVOY, LLC - TX | 903C | KARNESCITY | TX |
| 2011-03-01 | 830-254-8XXX | 8000–8999 | Assigned | AT&T ENTERPRISES, LLC | 516C | KARNESCITY | TX |
| 2013-09-12 | 830-254-9XXX | 9000–9999 | Assigned | PEERLESS NETWORK OF TEXAS, LLC - TX | 177F | KARNESCITY | TX |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/20/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.