NumberResearchThousands-blocks in 814-313
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 814-313 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 814 blocks
Most active assignees, all time — NPA 814
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| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2002-12-23 | 814-313-0XXX | 0000–0999 | Assigned | CORE COMMUNICATIONS, INC. - PA | 3806 | WARREN | PA |
| 2007-11-20 | 814-313-1XXX | 1000–1999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - PA | 4007 | WARREN | PA |
| 2023-10-06 | 814-313-2XXX | 2000–2999 | Assigned | ONVOY, LLC - PA | 547E | WARREN | PA |
| 2023-11-16 | 814-313-3XXX | 3000–3999 | Assigned | NUSO, LLC | 478J | WARREN | PA |
| 2015-01-16 | 814-313-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - PA | 002F | WARREN | PA |
| 2012-04-16 | 814-313-5XXX | 5000–5999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - PA | 7434 | WARREN | PA |
| 2016-08-30 | 814-313-6XXX | 6000–6999 | Assigned | ONVOY, LLC - PA | 547E | WARREN | PA |
| 2016-08-30 | 814-313-7XXX | 7000–7999 | Assigned | ONVOY, LLC - PA | 547E | WARREN | PA |
| 2021-05-12 | 814-313-8XXX | 8000–8999 | Assigned | METROPCS, INC. | 5562 | WARREN | PA |
| 2025-10-06 | 814-313-9XXX | 9000–9999 | Assigned | TERRA NOVA TELECOM INC. | 145J | WARREN | PA |
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.