NumberResearchThousands-blocks in 814-523
This prefix’s ten 1,000-number blocks and who holds each — 10 on record · from the daily NANPA thousands-block report, 09/21/2026
The ten 1,000-number thousand-blocks inside prefix 814-523 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
New assignments by month
Sep 2026
Aug 2026
Jul 2026
Jun 2026
May 2026
Apr 2026
Mar 2026
Feb 2026
Jan 2026
Dec 2025
Nov 2025
Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2021-02-15 | 814-523-0XXX | 0000–0999 | Assigned | TELNYX LLC | 073H | PATTON | PA |
| — | 814-523-1XXX | 1000–1999 | Available | PATTON | PA | ||
| 2009-03-10 | 814-523-2XXX | 2000–2999 | Assigned | CORE COMMUNICATIONS, INC. - PA | 3806 | PATTON | PA |
| 2013-07-01 | 814-523-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - PA | 7434 | PATTON | PA |
| 2015-01-21 | 814-523-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - PA | 002F | PATTON | PA |
| 2016-08-30 | 814-523-5XXX | 5000–5999 | Assigned | ONVOY, LLC - PA | 547E | PATTON | PA |
| 2016-08-30 | 814-523-6XXX | 6000–6999 | Assigned | ONVOY, LLC - PA | 547E | PATTON | PA |
| 2015-02-26 | 814-523-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | PATTON | PA |
| 2007-03-27 | 814-523-8XXX | 8000–8999 | Assigned | COMCAST IP PHONE, LLC | 318J | PATTON | PA |
| 2021-06-25 | 814-523-9XXX | 9000–9999 | Assigned | ONVOY, LLC - PA | 547E | PATTON | PA |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/21/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.