NumberResearchThousands-blocks in 262-423
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 262-423 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 262 blocks
Most active assignees, all time — NPA 262
New assignments by month
Sep 2026
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Dec 2025
Nov 2025
Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2024-08-12 | 262-423-0XXX | 0000–0999 | Assigned | TERRA NOVA TELECOM INC. | 145J | JACKSON | WI |
| 2020-08-31 | 262-423-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | JACKSON | WI |
| — | 262-423-2XXX | 2000–2999 | Reserved | LEVEL 3 COMMUNICATIONS, LLC - WI | 5489 | JACKSON | WI |
| 2020-08-31 | 262-423-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | JACKSON | WI |
| 2004-03-15 | 262-423-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - WI | 5489 | JACKSON | WI |
| 2016-07-26 | 262-423-5XXX | 5000–5999 | Assigned | UNITED STATES CELLULAR - WI | 6274 | JACKSON | WI |
| 2005-12-19 | 262-423-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - WI | 5489 | JACKSON | WI |
| 2010-07-12 | 262-423-7XXX | 7000–7999 | Assigned | BANDWIDTH.COM CLEC, LLC - WI | 007F | JACKSON | WI |
| 2006-10-17 | 262-423-8XXX | 8000–8999 | Assigned | AT&T ENTERPRISES, LLC | 516C | JACKSON | WI |
| 2024-12-19 | 262-423-9XXX | 9000–9999 | Assigned | PEERLESS NETWORK OF WISCONSIN, LLC - WI | 227F | JACKSON | WI |
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.