NumberResearchRecent thousands-block assignments
9 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 |
|---|---|---|---|---|---|---|---|
| 2021-04-22 | 707-858-3XXX | 3000–3999 | Assigned | ONVOY SPECTRUM, LLC | 624H | SANTA ROSA | CA |
| 2021-04-17 | 707-204-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | YOUNTVILLE | CA |
| 2021-04-17 | 707-204-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | YOUNTVILLE | CA |
| 2021-04-17 | 707-231-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | SONOMA | CA |
| 2021-04-15 | 707-866-2XXX | 2000–2999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | VALLEJO | CA |
| 2021-04-09 | 707-203-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | ELK | CA |
| 2021-04-09 | 707-215-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | HYDESVILLE | CA |
| 2021-04-09 | 707-221-3XXX | 3000–3999 | Assigned | IP HORIZON LLC | 515J | BRIDGEVL | CA |
| 2021-04-09 | 707-276-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | UPPER LAKE | CA |
| 2021-04-09 | 707-314-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | MONTE RIO | CA |
| 2021-04-09 | 707-358-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | WEOTT | CA |
| 2021-04-09 | 707-506-7XXX | 7000–7999 | Assigned | IP HORIZON LLC | 515J | RIO DELL | CA |
| 2021-04-09 | 707-532-6XXX | 6000–6999 | Assigned | IP HORIZON LLC | 515J | LOLETA | CA |
| 2021-04-09 | 707-597-3XXX | 3000–3999 | Assigned | IP HORIZON LLC | 515J | LKBERRYESS | CA |
| 2021-04-09 | 707-609-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | BODEGA BAY | CA |
| 2021-04-09 | 707-619-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | GEYSERVL | CA |
| 2021-04-09 | 707-626-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | BOONVILLE | CA |
| 2021-04-09 | 707-650-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | PEPPERWOOD | CA |
| 2021-04-09 | 707-698-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | TOMALES | CA |
| 2021-04-09 | 707-705-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | VALLEYFORD | CA |
| 2021-04-09 | 707-713-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7145 | ARCATA | CA |
| 2021-04-09 | 707-715-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | COBB MT | CA |
| 2021-04-09 | 707-739-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | NICE | CA |
| 2021-04-09 | 707-830-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | HOPLAND | CA |
| 2021-04-09 | 707-885-4XXX | 4000–4999 | Assigned | IP HORIZON LLC | 515J | GUALALA | CA |
| 2021-04-08 | 707-204-4XXX | 4000–4999 | Assigned | IP HORIZON LLC | 515J | YOUNTVILLE | CA |
| 2021-04-08 | 707-394-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | GUERNEVL | CA |
| 2021-04-08 | 707-593-2XXX | 2000–2999 | Assigned | IP HORIZON LLC | 515J | MENDOCINO | CA |
| 2021-04-08 | 707-614-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | FORESTVL | CA |
| 2021-04-08 | 707-667-3XXX | 3000–3999 | Assigned | IP HORIZON LLC | 515J | BLUE LAKE | CA |
| 2021-04-08 | 707-802-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | MIDDLETOWN | CA |
| 2021-04-08 | 707-831-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | CLERLAOAKS | CA |
| 2021-04-08 | 707-855-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | POTTER VLY | CA |
| 2021-04-08 | 707-872-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | OCCIDENTAL | CA |
| 2021-04-07 | 707-209-3XXX | 3000–3999 | Assigned | IP HORIZON LLC | 515J | VALLEJO | CA |
| 2021-04-07 | 707-231-5XXX | 5000–5999 | Assigned | IP HORIZON LLC | 515J | SONOMA | CA |
| 2021-04-07 | 707-281-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | KELSEYVL | CA |
| 2021-04-07 | 707-283-6XXX | 6000–6999 | Assigned | IP HORIZON LLC | 515J | PTLM MAIN | CA |
| 2021-04-07 | 707-285-4XXX | 4000–4999 | Assigned | IP HORIZON LLC | 515J | PTLM SWIFT | CA |
| 2021-04-07 | 707-313-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | UKIAH | CA |
| 2021-04-07 | 707-317-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | VACAVILLE | CA |
| 2021-04-07 | 707-370-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | WILLITS | CA |
| 2021-04-07 | 707-398-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | FRFLD-SUIS | CA |
| 2021-04-07 | 707-473-6XXX | 6000–6999 | Assigned | IP HORIZON LLC | 515J | HEALDSBURG | CA |
| 2021-04-07 | 707-501-6XXX | 6000–6999 | Assigned | IP HORIZON LLC | 515J | NAPA | CA |
| 2021-04-07 | 707-503-4XXX | 4000–4999 | Assigned | IP HORIZON LLC | 515J | SEBASTOPOL | CA |
| 2021-04-07 | 707-608-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | WINDSOR | CA |
| 2021-04-07 | 707-627-2XXX | 2000–2999 | Assigned | IP HORIZON LLC | 515J | LAKEPORT | CA |
| 2021-04-07 | 707-717-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | FORTUNA | CA |
| 2021-04-07 | 707-804-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | ST HELENA | 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.