NumberResearchThousands-blocks in 336-649
This prefix’s ten 1,000-number blocks and who holds each — 10 on record · from the daily NANPA thousands-block report, 09/19/2026
The ten 1,000-number thousand-blocks inside prefix 336-649 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 336 blocks
Most active assignees, all time — NPA 336
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 |
|---|---|---|---|---|---|---|---|
| 2002-11-18 | 336-649-0XXX | 0000–0999 | Assigned | UNITED STATES CELLULAR - NC | 6282 | WJEFFERSON | NC |
| 2002-11-18 | 336-649-1XXX | 1000–1999 | Assigned | UNITED STATES CELLULAR - NC | 6282 | WJEFFERSON | NC |
| 2014-08-20 | 336-649-2XXX | 2000–2999 | Assigned | UNITED STATES CELLULAR - NC | 6282 | WJEFFERSON | NC |
| 2017-05-08 | 336-649-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - NC | 998E | WJEFFERSON | NC |
| 2020-05-14 | 336-649-4XXX | 4000–4999 | Assigned | ONVOY, LLC - NC | 638E | WJEFFERSON | NC |
| 2020-05-14 | 336-649-5XXX | 5000–5999 | Assigned | ONVOY, LLC - NC | 638E | WJEFFERSON | NC |
| 2021-04-16 | 336-649-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - NC | 998E | WJEFFERSON | NC |
| — | 336-649-7XXX | 7000–7999 | Available | WJEFFERSON | NC | ||
| 2021-08-05 | 336-649-8XXX | 8000–8999 | Assigned | ONVOY, LLC - NC | 638E | WJEFFERSON | NC |
| 2026-01-14 | 336-649-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC | 6324 | WJEFFERSON | NC |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.