NumberResearchRecent thousands-block assignments
4 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, last 30 days — 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 |
|---|---|---|---|---|---|---|---|
| 2016-08-24 | 707-979-9XXX | 9000–9999 | Assigned | PEERLESS NETWORK OF CALIFORNIA, LLC - CA | 373F | MENDOCINO | CA |
| 2016-08-18 | 707-590-9XXX | 9000–9999 | Assigned | PEERLESS NETWORK OF CALIFORNIA, LLC - CA | 373F | BENICIA | CA |
| 2016-08-17 | 707-210-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | SONOMA | CA |
| 2016-08-17 | 707-243-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | OCCIDENTAL | CA |
| 2016-08-17 | 707-305-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | VACAVILLE | CA |
| 2016-08-17 | 707-308-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | SANTA ROSA | CA |
| 2016-08-17 | 707-314-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | MONTE RIO | CA |
| 2016-08-17 | 707-329-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | SEBASTOPOL | CA |
| 2016-08-17 | 707-354-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | WILLITS | CA |
| 2016-08-17 | 707-355-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | MIDDLETOWN | CA |
| 2016-08-17 | 707-379-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | VALLEYFORD | CA |
| 2016-08-17 | 707-381-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | GEYSERVL | CA |
| 2016-08-17 | 707-388-4XXX | 4000–4999 | Assigned | PEERLESS NETWORK OF CALIFORNIA, LLC - CA | 373F | ARCATA | CA |
| 2016-08-17 | 707-390-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | PEPPERWOOD | CA |
| 2016-08-17 | 707-500-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | NICE | CA |
| 2016-08-17 | 707-510-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | HOPLAND | CA |
| 2016-08-17 | 707-517-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | WEOTT | CA |
| 2016-08-17 | 707-530-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | LAKEPORT | CA |
| 2016-08-17 | 707-531-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | YOUNTVILLE | CA |
| 2016-08-17 | 707-532-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | LOLETA | CA |
| 2016-08-17 | 707-587-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | KELSEYVL | CA |
| 2016-08-17 | 707-587-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | KELSEYVL | CA |
| 2016-08-17 | 707-597-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | LKBERRYESS | CA |
| 2016-08-17 | 707-605-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | POTTER VLY | CA |
| 2016-08-17 | 707-714-3XXX | 3000–3999 | Assigned | IP HORIZON LLC | 515J | UKIAH | CA |
| 2016-08-17 | 707-728-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | GUERNEVL | CA |
| 2016-08-17 | 707-756-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | HEALDSBURG | CA |
| 2016-08-17 | 707-783-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | RIO DELL | CA |
| 2016-08-17 | 707-796-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | PTLM SWIFT | CA |
| 2016-08-17 | 707-819-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | NAPA | CA |
| 2016-08-17 | 707-835-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | PTLM MAIN | CA |
| 2016-08-17 | 707-851-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | HYDESVILLE | CA |
| 2016-08-17 | 707-882-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | POINTARENA | CA |
| 2016-08-17 | 707-883-5XXX | 5000–5999 | Assigned | IP HORIZON LLC | 515J | UPPER LAKE | CA |
| 2016-08-17 | 707-885-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | GUALALA | CA |
| 2016-08-17 | 707-892-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | WINDSOR | CA |
| 2016-08-17 | 707-917-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | VALLEJO | CA |
| 2016-08-17 | 707-957-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | TRINIDAD | CA |
| 2016-08-17 | 707-965-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | ST HELENA | CA |
| 2016-08-17 | 707-979-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | MENDOCINO | CA |
| 2016-08-17 | 707-993-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | LOWER LAKE | CA |
| 2016-08-16 | 707-203-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | ELK | CA |
| 2016-08-16 | 707-221-6XXX | 6000–6999 | Assigned | IP HORIZON LLC | 515J | BRIDGEVL | CA |
| 2016-08-16 | 707-306-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | ANNAPOLIS | CA |
| 2016-08-16 | 707-377-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | BODEGA BAY | CA |
| 2016-08-16 | 707-388-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | ARCATA | CA |
| 2016-08-16 | 707-610-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | CLOVERDALE | CA |
| 2016-08-16 | 707-617-4XXX | 4000–4999 | Assigned | IP HORIZON LLC | 515J | FORTUNA | CA |
| 2016-08-16 | 707-625-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | FORESTVL | CA |
| 2016-08-16 | 707-683-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | EUREKA | 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.