NumberResearchRecent thousands-block assignments
9 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026
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 |
|---|---|---|---|---|---|---|---|
| 2003-09-10 | 707-244-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | ST HELENA | CA |
| 2003-09-02 | 707-227-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | NAPA | CA |
| 2003-08-22 | 707-301-4XXX | 4000–4999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | VACAVILLE | CA |
| 2003-08-14 | 707-744-3XXX | 3000–3999 | Assigned | ONVOY, LLC - CA | 649C | HOPLAND | CA |
| 2003-08-05 | 707-238-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | PTLM SWIFT | CA |
| 2003-08-04 | 707-228-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SANTA ROSA | CA |
| 2003-08-04 | 707-228-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SANTA ROSA | CA |
| 2003-07-16 | 707-639-4XXX | 4000–4999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7145 | FRFLD-SUIS | CA |
| 2003-06-25 | 707-634-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SEBASTOPOL | CA |
| 2003-06-16 | 707-301-2XXX | 2000–2999 | Assigned | METROPCS, INC. | 5562 | VACAVILLE | CA |
| 2003-05-28 | 707-407-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | EUREKA | CA |
| 2003-05-27 | 707-228-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SANTA ROSA | CA |
| 2003-05-27 | 707-228-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SANTA ROSA | CA |
| 2003-05-23 | 707-225-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | NAPA | CA |
| 2003-05-23 | 707-225-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | NAPA | CA |
| 2003-05-20 | 707-815-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | NAPA | CA |
| 2003-05-02 | 707-225-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | NAPA | CA |
| 2003-05-02 | 707-225-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | NAPA | CA |
| 2003-04-07 | 707-236-4XXX | 4000–4999 | Assigned | METROPCS, INC. | 5562 | SANTA ROSA | CA |
| 2003-04-03 | 707-655-0XXX | 0000–0999 | Assigned | METROPCS, INC. | 5562 | VALLEJO | CA |
| 2003-04-03 | 707-655-1XXX | 1000–1999 | Assigned | METROPCS, INC. | 5562 | VALLEJO | CA |
| 2003-04-03 | 707-655-2XXX | 2000–2999 | Assigned | METROPCS, INC. | 5562 | VALLEJO | CA |
| 2003-04-03 | 707-655-3XXX | 3000–3999 | Assigned | METROPCS, INC. | 5562 | VALLEJO | CA |
| 2003-04-03 | 707-655-5XXX | 5000–5999 | Assigned | METROPCS, INC. | 5562 | VALLEJO | CA |
| 2003-04-03 | 707-655-6XXX | 6000–6999 | Assigned | METROPCS, INC. | 5562 | VALLEJO | CA |
| 2003-04-03 | 707-655-7XXX | 7000–7999 | Assigned | METROPCS, INC. | 5562 | VALLEJO | CA |
| 2003-04-03 | 707-655-8XXX | 8000–8999 | Assigned | METROPCS, INC. | 5562 | VALLEJO | CA |
| 2003-04-03 | 707-655-9XXX | 9000–9999 | Assigned | METROPCS, INC. | 5562 | VALLEJO | CA |
| 2003-03-26 | 707-274-4XXX | 4000–4999 | Assigned | ONVOY, LLC - CA | 649C | NICE | CA |
| 2003-03-17 | 707-344-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | FRFLD-SUIS | CA |
| 2003-03-03 | 707-361-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | BENICIA | CA |
| 2003-03-03 | 707-531-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | YOUNTVILLE | CA |
| 2003-03-03 | 707-879-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | TOMALES | CA |
| 2003-03-03 | 707-931-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | SONOMA | CA |
| 2003-01-30 | 707-604-7XXX | 7000–7999 | Assigned | COMCAST PHONE OF CALIFORNIA, LLC | 394L | GUERNEVL | CA |
| 2003-01-30 | 707-820-1XXX | 1000–1999 | Assigned | COMCAST PHONE OF CALIFORNIA, LLC | 394L | FORESTVL | CA |
| 2003-01-13 | 707-206-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SANTA ROSA | CA |
| 2002-12-17 | 707-474-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | VACAVILLE | CA |
| 2002-12-06 | 707-878-4XXX | 4000–4999 | Assigned | ONVOY, LLC - CA | 649C | TOMALES | CA |
| 2002-11-19 | 707-227-3XXX | 3000–3999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7145 | NAPA | CA |
| 2002-10-31 | 707-301-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | VACAVILLE | CA |
| 2002-10-31 | 707-849-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SANTA ROSA | CA |
| 2002-10-31 | 707-849-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SANTA ROSA | CA |
| 2002-10-31 | 707-849-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SANTA ROSA | CA |
| 2002-09-05 | 707-827-4XXX | 4000–4999 | Assigned | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | SEBASTOPOL | CA |
| 2002-08-27 | 707-282-2XXX | 2000–2999 | Assigned | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | KENWOOD | CA |
| 2002-08-20 | 707-752-6XXX | 6000–6999 | Assigned | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | BENICIA | CA |
| 2002-08-14 | 707-553-0XXX | 0000–0999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | VALLEJO | CA |
| 2002-08-01 | 707-207-7XXX | 7000–7999 | Assigned | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | FRFLD-SUIS | CA |
| 2002-08-01 | 707-559-7XXX | 7000–7999 | Assigned | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | PTLM MAIN | 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.