NumberResearchThousands-blocks in 252-833
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 252-833 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 252 blocks
Most active assignees, all time — NPA 252
New assignments by month
Sep 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2010-12-13 | 252-833-0XXX | 0000–0999 | Assigned | CSC VOICE, LLC | 612K | WASHINGTON | NC |
| 2016-02-02 | 252-833-1XXX | 1000–1999 | Assigned | SOUTH CAROLINA NET, INC. - NC | 511C | WASHINGTON | NC |
| 2016-03-02 | 252-833-2XXX | 2000–2999 | Assigned | UNITED STATES CELLULAR - NC | 6282 | WASHINGTON | NC |
| 2016-08-02 | 252-833-3XXX | 3000–3999 | Assigned | UNITED STATES CELLULAR - NC | 6282 | WASHINGTON | NC |
| 2006-12-20 | 252-833-4XXX | 4000–4999 | Assigned | CSC VOICE, LLC | 612K | WASHINGTON | NC |
| 2022-08-18 | 252-833-5XXX | 5000–5999 | Assigned | VONAGE AMERICA LLC | 197D | WASHINGTON | NC |
| 2024-06-06 | 252-833-6XXX | 6000–6999 | Assigned | ONVOY, LLC - NC | 638E | WASHINGTON | NC |
| 2021-08-11 | 252-833-7XXX | 7000–7999 | Assigned | UNITED STATES CELLULAR - NC | 6282 | WASHINGTON | NC |
| 2015-12-02 | 252-833-8XXX | 8000–8999 | Assigned | UNITED STATES CELLULAR - NC | 6282 | WASHINGTON | NC |
| 2015-03-04 | 252-833-9XXX | 9000–9999 | Assigned | UNITED STATES CELLULAR - NC | 6282 | WASHINGTON | NC |
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.