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 |
|---|---|---|---|---|---|---|---|
| 2007-01-12 | 707-927-3XXX | 3000–3999 | Assigned | COMCAST PHONE OF CALIFORNIA, LLC | 394L | NAPA | CA |
| 2007-01-12 | 707-927-5XXX | 5000–5999 | Assigned | COMCAST PHONE OF CALIFORNIA, LLC | 394L | NAPA | CA |
| 2007-01-12 | 707-981-7XXX | 7000–7999 | Assigned | COMCAST PHONE OF CALIFORNIA, LLC | 394L | PTLM MAIN | CA |
| 2007-01-12 | 707-981-8XXX | 8000–8999 | Assigned | COMCAST PHONE OF CALIFORNIA, LLC | 394L | PTLM MAIN | CA |
| 2007-01-09 | 707-513-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | UKIAH | CA |
| 2007-01-09 | 707-513-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | UKIAH | CA |
| 2007-01-09 | 707-513-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | UKIAH | CA |
| 2007-01-08 | 707-364-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | PTLM MAIN | CA |
| 2006-12-28 | 707-980-6XXX | 6000–6999 | Assigned | COMCAST PHONE OF CALIFORNIA, LLC | 394L | VALLEJO | CA |
| 2006-12-28 | 707-980-7XXX | 7000–7999 | Assigned | COMCAST PHONE OF CALIFORNIA, LLC | 394L | VALLEJO | CA |
| 2006-12-27 | 707-534-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | VALLEJO | CA |
| 2006-12-18 | 707-878-5XXX | 5000–5999 | Assigned | ONVOY, LLC - CA | 649C | TOMALES | CA |
| 2006-12-18 | 707-943-5XXX | 5000–5999 | Assigned | ONVOY, LLC - CA | 649C | MIRANDA | CA |
| 2006-12-14 | 707-320-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | NAPA | CA |
| 2006-12-14 | 707-320-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | NAPA | CA |
| 2006-12-14 | 707-702-0XXX | 0000–0999 | Assigned | ONVOY, LLC - CA | 649C | BLUE LAKE | CA |
| 2006-12-14 | 707-809-3XXX | 3000–3999 | Assigned | ONVOY, LLC - CA | 649C | MIDDLETOWN | CA |
| 2006-12-14 | 707-881-4XXX | 4000–4999 | Assigned | ONVOY, LLC - CA | 649C | COBB MT | CA |
| 2006-12-06 | 707-416-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | FRFLD-SUIS | CA |
| 2006-11-29 | 707-338-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | PTLM MAIN | CA |
| 2006-11-29 | 707-685-9XXX | 9000–9999 | Assigned | COMCAST PHONE OF CALIFORNIA, LLC | 394L | VACAVILLE | CA |
| 2006-11-29 | 707-689-5XXX | 5000–5999 | Assigned | COMCAST PHONE OF CALIFORNIA, LLC | 394L | VACAVILLE | CA |
| 2006-11-21 | 707-396-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | SANTA ROSA | CA |
| 2006-11-13 | 707-367-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | UKIAH | CA |
| 2006-11-13 | 707-472-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | UKIAH | CA |
| 2006-11-03 | 707-676-0XXX | 0000–0999 | Assigned | METROPCS, INC. | 5562 | DIXON | CA |
| 2006-10-19 | 707-827-6XXX | 6000–6999 | Assigned | AT&T ENTERPRISES, LLC | 516C | SEBASTOPOL | CA |
| 2006-10-13 | 707-362-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | EUREKA | CA |
| 2006-10-11 | 707-239-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | WINDSOR | CA |
| 2006-10-10 | 707-580-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | FRFLD-SUIS | CA |
| 2006-10-10 | 707-580-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | FRFLD-SUIS | CA |
| 2006-10-09 | 707-902-9XXX | 9000–9999 | Assigned | ONVOY, LLC - CA | 649C | HYDESVILLE | CA |
| 2006-10-04 | 707-628-0XXX | 0000–0999 | Assigned | METROPCS, INC. | 5562 | VACAVILLE | CA |
| 2006-10-03 | 707-293-2XXX | 2000–2999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7145 | SANTA ROSA | CA |
| 2006-09-15 | 707-670-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | HOPLAND | CA |
| 2006-09-15 | 707-739-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | NICE | CA |
| 2006-09-15 | 707-743-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | POTTER VLY | CA |
| 2006-09-15 | 707-857-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | GEYSERVL | CA |
| 2006-09-15 | 707-876-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | VALLEYFORD | CA |
| 2006-09-15 | 707-878-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | TOMALES | CA |
| 2006-09-15 | 707-887-5XXX | 5000–5999 | Assigned | IP HORIZON LLC | 515J | FORESTVL | CA |
| 2006-09-14 | 707-364-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | PTLM MAIN | CA |
| 2006-09-14 | 707-497-6XXX | 6000–6999 | Assigned | CSC VOICE, LLC | 612K | EUREKA | CA |
| 2006-09-14 | 707-506-5XXX | 5000–5999 | Assigned | CSC VOICE, LLC | 612K | RIO DELL | CA |
| 2006-09-14 | 707-604-5XXX | 5000–5999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | GUERNEVL | CA |
| 2006-09-14 | 707-633-5XXX | 5000–5999 | Assigned | CSC VOICE, LLC | 612K | ARCATA | CA |
| 2006-09-14 | 707-633-6XXX | 6000–6999 | Assigned | CSC VOICE, LLC | 612K | ARCATA | CA |
| 2006-09-14 | 707-667-6XXX | 6000–6999 | Assigned | CSC VOICE, LLC | 612K | BLUE LAKE | CA |
| 2006-09-14 | 707-677-5XXX | 5000–5999 | Assigned | CSC VOICE, LLC | 612K | TRINIDAD | CA |
| 2006-09-14 | 707-682-6XXX | 6000–6999 | Assigned | CSC VOICE, LLC | 612K | FORTUNA | 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.