NumberResearchThousands-blocks in 262-721
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 262-721 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
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| — | 262-721-0XXX | 0000–0999 | Reserved | LEVEL 3 COMMUNICATIONS, LLC - WI | 5489 | RACINE | WI |
| — | 262-721-1XXX | 1000–1999 | Reserved | LEVEL 3 COMMUNICATIONS, LLC - WI | 5489 | RACINE | WI |
| 2022-07-05 | 262-721-2XXX | 2000–2999 | Assigned | UNITED STATES CELLULAR - WI | 6274 | RACINE | WI |
| 2024-08-14 | 262-721-3XXX | 3000–3999 | Assigned | TERRA NOVA TELECOM INC. | 145J | RACINE | WI |
| 2007-05-21 | 262-721-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | RACINE | WI |
| 2007-05-21 | 262-721-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | RACINE | WI |
| 2007-05-21 | 262-721-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | RACINE | WI |
| 2008-09-02 | 262-721-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | RACINE | WI |
| 2005-12-27 | 262-721-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | RACINE | WI |
| 2024-12-19 | 262-721-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | RACINE | 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.