NumberResearchRecent thousands-block assignments
31 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 530
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 |
|---|---|---|---|---|---|---|---|
| 2007-04-26 | 530-287-7XXX | 7000–7999 | Assigned | ONVOY, LLC - CA | 649C | ALLEGHANY | CA |
| 2007-04-26 | 530-288-7XXX | 7000–7999 | Assigned | ONVOY, LLC - CA | 649C | CAMPTONVL | CA |
| 2007-04-26 | 530-418-6XXX | 6000–6999 | Assigned | ONVOY, LLC - CA | 649C | NORTH YUBA | CA |
| 2007-04-26 | 530-502-7XXX | 7000–7999 | Assigned | ONVOY, LLC - CA | 649C | PRINCETON | CA |
| 2007-04-26 | 530-503-6XXX | 6000–6999 | Assigned | ONVOY, LLC - CA | 649C | PLVL SOUTH | CA |
| 2007-04-26 | 530-512-7XXX | 7000–7999 | Assigned | ONVOY, LLC - CA | 649C | COLFAX | CA |
| 2007-04-11 | 530-638-1XXX | 1000–1999 | Assigned | METROPCS, INC. | 5562 | REDDING | CA |
| 2007-04-11 | 530-965-2XXX | 2000–2999 | Assigned | METROPCS, INC. | 5562 | CHICO | CA |
| 2007-04-02 | 530-554-3XXX | 3000–3999 | Assigned | METROPCS, INC. | 5562 | DAVIS | CA |
| 2007-03-20 | 530-316-0XXX | 0000–0999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | BLAIRSDEN | CA |
| 2007-03-12 | 530-526-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | RED BLUFF | CA |
| 2007-03-12 | 530-693-8XXX | 8000–8999 | Assigned | METROPCS, INC. | 5562 | OROVILLE | CA |
| 2007-03-12 | 530-798-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | GRVY MAIN | CA |
| 2007-03-12 | 530-844-6XXX | 6000–6999 | Assigned | METROPCS, INC. | 5562 | MARYSVILLE | CA |
| 2007-03-12 | 530-844-7XXX | 7000–7999 | Assigned | METROPCS, INC. | 5562 | MARYSVILLE | CA |
| 2007-03-09 | 530-282-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | OROVILLE | CA |
| 2007-03-01 | 530-923-0XXX | 0000–0999 | Assigned | METROPCS, INC. | 5562 | MARYSVILLE | CA |
| 2007-02-16 | 530-327-6XXX | 6000–6999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7128 | PARADISE | CA |
| 2007-02-13 | 530-386-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | TRUCKEE | CA |
| 2007-02-07 | 530-539-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7128 | SOUTHTAHOE | CA |
| 2007-01-31 | 530-745-6XXX | 6000–6999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | AUBN MAIN | CA |
| 2007-01-31 | 530-748-1XXX | 1000–1999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | PLVL WEST | CA |
| 2007-01-22 | 530-351-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | REDDING | CA |
| 2007-01-18 | 530-214-8XXX | 8000–8999 | Assigned | CSC VOICE, LLC | 612K | TRUCKEE | CA |
| 2007-01-18 | 530-278-3XXX | 3000–3999 | Assigned | CSC VOICE, LLC | 612K | GRVY SOUTH | CA |
| 2007-01-18 | 530-412-8XXX | 8000–8999 | Assigned | CSC VOICE, LLC | 612K | NTAH THCY | CA |
| 2007-01-18 | 530-525-8XXX | 8000–8999 | Assigned | CSC VOICE, LLC | 612K | HOMEWOOD | CA |
| 2007-01-18 | 530-575-4XXX | 4000–4999 | Assigned | CSC VOICE, LLC | 612K | GRVY MAIN | CA |
| 2007-01-18 | 530-637-7XXX | 7000–7999 | Assigned | CSC VOICE, LLC | 612K | CLFX WEMR | CA |
| 2007-01-17 | 530-990-7XXX | 7000–7999 | Assigned | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | OROVILLE | CA |
| 2007-01-16 | 530-788-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | MARYSVILLE | CA |
| 2007-01-12 | 530-739-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | WEAVERVL | CA |
| 2007-01-11 | 530-665-7XXX | 7000–7999 | Assigned | FIDIUM ENTERPRISE SERVICES, LLC | 3964 | WOODLAND | CA |
| 2007-01-09 | 530-990-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | OROVILLE | CA |
| 2007-01-08 | 530-361-5XXX | 5000–5999 | Assigned | METROPCS, INC. | 5562 | WILLOWS | CA |
| 2007-01-08 | 530-501-5XXX | 5000–5999 | Assigned | METROPCS, INC. | 5562 | WILLIAMS | CA |
| 2006-12-29 | 530-392-3XXX | 3000–3999 | Assigned | CSC VOICE, LLC | 612K | AUBN MAIN | CA |
| 2006-12-29 | 530-748-0XXX | 0000–0999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | PLVL WEST | CA |
| 2006-12-29 | 530-776-7XXX | 7000–7999 | Assigned | METROPCS, INC. | 5562 | ANDERSON | CA |
| 2006-12-14 | 530-401-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | AUBN MAIN | CA |
| 2006-12-14 | 530-603-7XXX | 7000–7999 | Assigned | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | BANGOR | CA |
| 2006-12-14 | 530-638-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | REDDING | CA |
| 2006-12-14 | 530-638-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | REDDING | CA |
| 2006-12-06 | 530-366-1XXX | 1000–1999 | Assigned | METROPCS, INC. | 5562 | RED BLUFF | CA |
| 2006-12-06 | 530-693-9XXX | 9000–9999 | Assigned | METROPCS, INC. | 5562 | OROVILLE | CA |
| 2006-12-06 | 530-838-0XXX | 0000–0999 | Assigned | METROPCS, INC. | 5562 | CORNING | CA |
| 2006-12-06 | 530-936-4XXX | 4000–4999 | Assigned | METROPCS, INC. | 5562 | ORLAND | CA |
| 2006-11-29 | 530-510-4XXX | 4000–4999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7128 | REDDING | CA |
| 2006-11-29 | 530-798-5XXX | 5000–5999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7128 | GRVY MAIN | CA |
| 2006-11-21 | 530-333-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | GEORGETOWN | 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.