NumberResearchRecent thousands-block assignments
24 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 |
|---|---|---|---|---|---|---|---|
| 2016-06-21 | 530-840-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | RED BLUFF | CA |
| 2016-06-17 | 530-806-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | REDDING | CA |
| 2016-06-15 | 530-547-6XXX | 6000–6999 | Assigned | UTILITY TELECOM GROUP, LLC - CA | 9262 | MILLVILLE | CA |
| 2016-06-08 | 530-551-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | ANDERSON | CA |
| 2016-06-08 | 530-551-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | ANDERSON | CA |
| 2016-05-26 | 530-394-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | QUINCY | CA |
| 2016-05-26 | 530-648-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | GRVY MAIN | CA |
| 2016-05-19 | 530-813-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | MARYSVILLE | CA |
| 2016-05-19 | 530-813-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | MARYSVILLE | CA |
| 2016-05-11 | 530-764-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | OROVILLE | CA |
| 2016-04-29 | 530-691-4XXX | 4000–4999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | REDDING | CA |
| 2016-04-28 | 530-317-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | PLVL WEST | CA |
| 2016-04-26 | 530-717-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | CHICO | CA |
| 2016-04-26 | 530-717-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | CHICO | CA |
| 2016-04-21 | 530-537-2XXX | 2000–2999 | Assigned | ASTOUND BROADBAND, LLC - CA | 485E | AUBN MAIN | CA |
| 2016-04-19 | 530-340-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | YREKA | CA |
| 2016-04-19 | 530-517-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | BUTTE CITY | CA |
| 2016-04-19 | 530-840-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | RED BLUFF | CA |
| 2016-04-15 | 530-239-5XXX | 5000–5999 | Assigned | METROPCS, INC. | 5562 | MT SHASTA | CA |
| 2016-04-15 | 530-631-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | WOODLAND | CA |
| 2016-03-31 | 530-408-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | WEED | CA |
| 2016-03-23 | 530-389-6XXX | 6000–6999 | Assigned | ONVOY, LLC - CA | 649C | ALTA | CA |
| 2016-03-23 | 530-464-6XXX | 6000–6999 | Assigned | ONVOY, LLC - CA | 649C | ALTA | CA |
| 2016-03-23 | 530-815-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | CHICO | CA |
| 2016-03-23 | 530-815-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | CHICO | CA |
| 2016-03-10 | 530-771-6XXX | 6000–6999 | Assigned | ONVOY, LLC - CA | 649C | DAVIS | CA |
| 2016-03-10 | 530-792-9XXX | 9000–9999 | Assigned | ONVOY, LLC - CA | 649C | DAVIS | CA |
| 2016-03-08 | 530-238-4XXX | 4000–4999 | Assigned | UTILITY TELECOM GROUP, LLC - CA | 9262 | SHASTALAKE | CA |
| 2016-03-08 | 530-593-2XXX | 2000–2999 | Assigned | ONVOY, LLC - CA | 649C | NORTH YUBA | CA |
| 2016-03-08 | 530-593-3XXX | 3000–3999 | Assigned | ONVOY, LLC - CA | 649C | NORTH YUBA | CA |
| 2016-03-08 | 530-594-0XXX | 0000–0999 | Assigned | ONVOY, LLC - CA | 649C | GRIDLEY | CA |
| 2016-03-08 | 530-594-1XXX | 1000–1999 | Assigned | ONVOY, LLC - CA | 649C | GRIDLEY | CA |
| 2016-03-08 | 530-655-8XXX | 8000–8999 | Assigned | ONVOY, LLC - CA | 649C | NICOLAUS | CA |
| 2016-03-08 | 530-655-9XXX | 9000–9999 | Assigned | ONVOY, LLC - CA | 649C | NICOLAUS | CA |
| 2016-03-07 | 530-633-3XXX | 3000–3999 | Assigned | ONVOY, LLC - CA | 649C | WHEATLAND | CA |
| 2016-03-07 | 530-768-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | REDDING | CA |
| 2016-03-04 | 530-955-8XXX | 8000–8999 | Assigned | ONVOY, LLC - CA | 649C | NEVADACITY | CA |
| 2016-03-04 | 530-955-9XXX | 9000–9999 | Assigned | ONVOY, LLC - CA | 649C | NEVADACITY | CA |
| 2016-03-03 | 530-317-0XXX | 0000–0999 | Assigned | ONVOY, LLC - CA | 649C | PLVL WEST | CA |
| 2016-03-03 | 530-317-1XXX | 1000–1999 | Assigned | ONVOY, LLC - CA | 649C | PLVL WEST | CA |
| 2016-03-03 | 530-505-2XXX | 2000–2999 | Assigned | ONVOY, LLC - CA | 649C | WINTERS | CA |
| 2016-03-03 | 530-505-3XXX | 3000–3999 | Assigned | ONVOY, LLC - CA | 649C | WINTERS | CA |
| 2016-03-02 | 530-556-1XXX | 1000–1999 | Assigned | ONVOY, LLC - CA | 649C | SHINGLESPG | CA |
| 2016-03-02 | 530-556-3XXX | 3000–3999 | Assigned | ONVOY, LLC - CA | 649C | SHINGLESPG | CA |
| 2016-02-29 | 530-600-5XXX | 5000–5999 | Assigned | ONVOY, LLC - CA | 649C | SOUTHTAHOE | CA |
| 2016-02-29 | 530-600-6XXX | 6000–6999 | Assigned | ONVOY, LLC - CA | 649C | SOUTHTAHOE | CA |
| 2016-02-24 | 530-537-0XXX | 0000–0999 | Assigned | ONVOY, LLC - CA | 649C | AUBN MAIN | CA |
| 2016-02-24 | 530-537-1XXX | 1000–1999 | Assigned | ONVOY, LLC - CA | 649C | AUBN MAIN | CA |
| 2016-02-23 | 530-556-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SHINGLESPG | CA |
| 2016-02-16 | 530-631-3XXX | 3000–3999 | Assigned | ONVOY, LLC - CA | 649C | WOODLAND | 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.