NumberResearchThousands-blocks in 254-233
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 254-233 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 254 blocks
Most active assignees, all time — NPA 254
New assignments by month
Sep 2026
Aug 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| — | 254-233-0XXX | 0000–0999 | Reserved | SOUTHWESTERN BELL | 9533 | STRAWN | TX |
| 2006-12-20 | 254-233-1XXX | 1000–1999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | STRAWN | TX |
| 2020-03-31 | 254-233-2XXX | 2000–2999 | Assigned | PEERLESS NETWORK OF TEXAS, LLC - TX | 177F | STRAWN | TX |
| 2020-10-08 | 254-233-3XXX | 3000–3999 | Assigned | TERRA NOVA TELECOM INC. | 145J | STRAWN | TX |
| 2021-05-08 | 254-233-4XXX | 4000–4999 | Assigned | IP HORIZON LLC | 515J | STRAWN | TX |
| 2013-02-01 | 254-233-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | STRAWN | TX |
| 2021-05-27 | 254-233-6XXX | 6000–6999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | STRAWN | TX |
| 2009-08-07 | 254-233-7XXX | 7000–7999 | Assigned | ONVOY, LLC - TX | 903C | STRAWN | TX |
| 2013-09-03 | 254-233-8XXX | 8000–8999 | Assigned | ONVOY, LLC - TX | 903C | STRAWN | TX |
| 2016-12-29 | 254-233-9XXX | 9000–9999 | Assigned | PEERLESS NETWORK OF TEXAS, LLC - TX | 177F | STRAWN | 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.