NumberResearchThousands-blocks in 626-239
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 626-239 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 626 blocks
Most active assignees, all time — NPA 626
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 |
|---|---|---|---|---|---|---|---|
| — | 626-239-0XXX | 0000–0999 | Reserved | FRONTIER CALIFORNIA INC. | 2319 | MONROVIA | CA |
| 2009-06-23 | 626-239-1XXX | 1000–1999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | MONROVIA | CA |
| — | 626-239-2XXX | 2000–2999 | Reserved | FRONTIER CALIFORNIA INC. | 2319 | MONROVIA | CA |
| 2006-09-07 | 626-239-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | MONROVIA | CA |
| 2025-09-24 | 626-239-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | MONROVIA | CA |
| 2005-12-27 | 626-239-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | MONROVIA | CA |
| 2006-12-05 | 626-239-6XXX | 6000–6999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | MONROVIA | CA |
| 2008-05-07 | 626-239-7XXX | 7000–7999 | Assigned | ONVOY, LLC - CA | 649C | MONROVIA | CA |
| 2010-06-01 | 626-239-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | MONROVIA | CA |
| 2020-08-13 | 626-239-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | MONROVIA | CA |
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.