NumberResearchRecent thousands-block assignments
0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/20/2026
Most carrier growth happens here, not at the prefix level: under number pooling, carriers receive individual 1,000-number blocks (e.g. 626-470-0XXX) within already-assigned prefixes. Assignments are initial assignments — the current serving carrier of individual numbers may differ due to portability.
Most active assignees, all time — NPA 707
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 |
|---|---|---|---|---|---|---|---|
| 2020-11-11 | 707-727-1XXX | 1000–1999 | Assigned | UNITED STATES CELLULAR - CA | 6261 | UKIAH | CA |
| 2020-09-20 | 707-727-6XXX | 6000–6999 | Assigned | UNITED STATES CELLULAR - CA | 6261 | UKIAH | CA |
| 2020-09-08 | 707-680-1XXX | 1000–1999 | Assigned | UNITED STATES CELLULAR - CA | 6261 | WILLITS | CA |
| 2020-08-28 | 707-627-0XXX | 0000–0999 | Assigned | UNITED STATES CELLULAR - CA | 6261 | LAKEPORT | CA |
| 2020-07-21 | 707-409-8XXX | 8000–8999 | Assigned | UNITED STATES CELLULAR - CA | 6261 | FORT BRAGG | CA |
| 2020-07-17 | 707-727-0XXX | 0000–0999 | Assigned | UNITED STATES CELLULAR - CA | 6261 | UKIAH | CA |
| 2019-08-26 | 707-680-0XXX | 0000–0999 | Assigned | UNITED STATES CELLULAR - CA | 6261 | WILLITS | CA |
| 2017-12-04 | 707-613-5XXX | 5000–5999 | Assigned | UNITED STATES CELLULAR - CA | 6261 | EUREKA | CA |
| 2017-04-05 | 707-572-1XXX | 1000–1999 | Assigned | UNITED STATES CELLULAR - CA | 6261 | EUREKA | CA |
| 2016-12-08 | 707-357-8XXX | 8000–8999 | Assigned | UNITED STATES CELLULAR - CA | 6261 | FORT BRAGG | CA |
| 2015-11-18 | 707-354-8XXX | 8000–8999 | Assigned | UNITED STATES CELLULAR - CA | 6261 | WILLITS | CA |
| 2014-03-03 | 707-354-5XXX | 5000–5999 | Assigned | UNITED STATES CELLULAR - CA | 6261 | WILLITS | CA |
| 2012-09-28 | 707-357-6XXX | 6000–6999 | Assigned | UNITED STATES CELLULAR - CA | 6261 | FORT BRAGG | CA |
| 2011-10-26 | 707-357-5XXX | 5000–5999 | Assigned | UNITED STATES CELLULAR - CA | 6261 | FORT BRAGG | CA |
| 2010-08-25 | 707-223-8XXX | 8000–8999 | Assigned | UNITED STATES CELLULAR - CA | 6261 | GARBERVL | CA |
| 2009-10-23 | 707-223-7XXX | 7000–7999 | Assigned | UNITED STATES CELLULAR - CA | 6261 | GARBERVL | CA |
| 2006-03-31 | 707-701-4XXX | 4000–4999 | Assigned | UNITED STATES CELLULAR - CA | 6261 | LOWER LAKE | CA |
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.