NumberResearchThousands-blocks in 336-916
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 336-916 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
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Dec 2025
Nov 2025
Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2017-03-27 | 336-916-0XXX | 0000–0999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | MADISON | NC |
| 2017-04-13 | 336-916-1XXX | 1000–1999 | Assigned | ONVOY, LLC - NC | 638E | MADISON | NC |
| 2014-04-03 | 336-916-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NC | 3235 | MADISON | NC |
| 2026-03-12 | 336-916-3XXX | 3000–3999 | Assigned | ONVOY, LLC - NC | 638E | MADISON | NC |
| 2020-11-27 | 336-916-4XXX | 4000–4999 | Assigned | ONVOY, LLC - NC | 638E | MADISON | NC |
| 2020-11-27 | 336-916-5XXX | 5000–5999 | Assigned | ONVOY, LLC - NC | 638E | MADISON | NC |
| 2019-05-02 | 336-916-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - NC | 8389 | MADISON | NC |
| 2019-03-06 | 336-916-7XXX | 7000–7999 | Assigned | ONVOY, LLC - NC | 638E | MADISON | NC |
| 2018-08-03 | 336-916-8XXX | 8000–8999 | Assigned | RIVERSTREET COMMUNICATIONS OF NO CAROLINA - NC | 769H | MADISON | NC |
| 2019-03-06 | 336-916-9XXX | 9000–9999 | Assigned | ONVOY, LLC - NC | 638E | MADISON | 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.