NumberResearchThousands-blocks in 336-296
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 336-296 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
Jul 2026
Jun 2026
May 2026
Apr 2026
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Dec 2025
Nov 2025
Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2017-03-03 | 336-296-0XXX | 0000–0999 | Assigned | RIVERSTREET COMMUNICATIONS OF NO CAROLINA - NC | 769H | KING | NC |
| 2017-09-25 | 336-296-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - NC | 998E | KING | NC |
| 2018-06-01 | 336-296-2XXX | 2000–2999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | KING | NC |
| 2019-01-22 | 336-296-3XXX | 3000–3999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NC | 3235 | KING | NC |
| 2022-07-01 | 336-296-4XXX | 4000–4999 | Assigned | ONVOY, LLC - NC | 638E | KING | NC |
| 2020-10-08 | 336-296-5XXX | 5000–5999 | Assigned | ONVOY, LLC - NC | 638E | KING | NC |
| 2013-08-30 | 336-296-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - NC | 8389 | KING | NC |
| 2015-05-07 | 336-296-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | KING | NC |
| 2021-03-01 | 336-296-8XXX | 8000–8999 | Assigned | ONVOY, LLC - NC | 638E | KING | NC |
| 2021-03-01 | 336-296-9XXX | 9000–9999 | Assigned | ONVOY, LLC - NC | 638E | KING | 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.