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 |
|---|---|---|---|---|---|---|---|
| 2017-03-14 | 530-536-1XXX | 1000–1999 | Assigned | TELNYX LLC | 073H | TRUCKEE | CA |
| 2017-03-14 | 530-556-7XXX | 7000–7999 | Assigned | TELNYX LLC | 073H | SHINGLESPG | CA |
| 2017-03-14 | 530-557-8XXX | 8000–8999 | Assigned | TELNYX LLC | 073H | NEVADACITY | CA |
| 2017-03-14 | 530-631-1XXX | 1000–1999 | Assigned | TELNYX LLC | 073H | WOODLAND | CA |
| 2017-03-14 | 530-648-2XXX | 2000–2999 | Assigned | TELNYX LLC | 073H | GRVY MAIN | CA |
| 2017-03-14 | 530-690-8XXX | 8000–8999 | Assigned | TELNYX LLC | 073H | RED BLUFF | CA |
| 2017-03-14 | 530-783-8XXX | 8000–8999 | Assigned | TELNYX LLC | 073H | PARADISE | CA |
| 2017-03-14 | 530-854-8XXX | 8000–8999 | Assigned | TELNYX LLC | 073H | OROVILLE | CA |
| 2017-03-14 | 530-900-8XXX | 8000–8999 | Assigned | TELNYX LLC | 073H | CORNING | CA |
| 2017-03-14 | 530-925-7XXX | 7000–7999 | Assigned | TELNYX LLC | 073H | MT SHASTA | CA |
| 2017-03-14 | 530-927-4XXX | 4000–4999 | Assigned | TELNYX LLC | 073H | QUINCY | CA |
| 2017-03-14 | 530-979-5XXX | 5000–5999 | Assigned | TELNYX LLC | 073H | DAVIS | CA |
| 2017-03-13 | 530-319-6XXX | 6000–6999 | Assigned | TELNYX LLC | 073H | REDDING | CA |
| 2017-03-13 | 530-537-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | AUBN MAIN | CA |
| 2017-02-27 | 530-965-5XXX | 5000–5999 | Assigned | COMCAST PHONE OF CALIFORNIA, LLC | 394L | CHICO | CA |
| 2017-02-16 | 530-768-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | REDDING | CA |
| 2017-02-16 | 530-806-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | REDDING | CA |
| 2017-02-16 | 530-806-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | REDDING | CA |
| 2017-02-10 | 530-407-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | ANDERSON | CA |
| 2017-02-10 | 530-407-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | ANDERSON | CA |
| 2017-02-08 | 530-545-5XXX | 5000–5999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | SOUTHTAHOE | CA |
| 2017-02-08 | 530-725-2XXX | 2000–2999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | SOUTHTAHOE | CA |
| 2017-02-07 | 530-260-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | SUSANVILLE | CA |
| 2017-02-06 | 530-620-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | PLVL SOUTH | CA |
| 2017-02-02 | 530-539-6XXX | 6000–6999 | Assigned | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | SOUTHTAHOE | CA |
| 2017-01-27 | 530-783-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | PARADISE | CA |
| 2017-01-17 | 530-557-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | NEVADACITY | CA |
| 2017-01-13 | 530-806-4XXX | 4000–4999 | Assigned | UTILITY TELECOM GROUP, LLC - CA | 9262 | REDDING | CA |
| 2017-01-11 | 530-556-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SHINGLESPG | CA |
| 2017-01-11 | 530-803-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | COTTONWOOD | CA |
| 2016-12-28 | 530-500-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | DUNSMUIR | CA |
| 2016-12-21 | 530-720-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | CHICO | CA |
| 2016-12-21 | 530-774-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | CHICO | CA |
| 2016-12-16 | 530-399-1XXX | 1000–1999 | Assigned | TELNYX LLC | 073H | CHICO | CA |
| 2016-12-14 | 530-659-5XXX | 5000–5999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | SOUTHTAHOE | CA |
| 2016-12-14 | 530-659-6XXX | 6000–6999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | SOUTHTAHOE | CA |
| 2016-12-14 | 530-900-7XXX | 7000–7999 | Assigned | UTILITY TELECOM GROUP, LLC - CA | 9262 | CORNING | CA |
| 2016-12-08 | 530-803-2XXX | 2000–2999 | Assigned | UTILITY TELECOM GROUP, LLC - CA | 9262 | COTTONWOOD | CA |
| 2016-12-07 | 530-565-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | LIVE OAK | CA |
| 2016-11-23 | 530-537-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | AUBN MAIN | CA |
| 2016-11-22 | 530-443-5XXX | 5000–5999 | Assigned | ONVOY, LLC - CA | 649C | MARYSVILLE | CA |
| 2016-11-16 | 530-319-8XXX | 8000–8999 | Assigned | CAL-ORE COMMUNICATIONS, INC. - CA | 734E | REDDING | CA |
| 2016-11-16 | 530-650-0XXX | 0000–0999 | Assigned | ONVOY, LLC - CA | 649C | WOODLAND | CA |
| 2016-11-10 | 530-220-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | DAVIS | CA |
| 2016-11-10 | 530-650-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | WOODLAND | CA |
| 2016-11-08 | 530-715-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | CHICO | CA |
| 2016-10-26 | 530-250-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SUSANVILLE | CA |
| 2016-10-19 | 530-636-7XXX | 7000–7999 | Assigned | ONVOY, LLC - CA | 649C | CHICO | CA |
| 2016-10-19 | 530-636-8XXX | 8000–8999 | Assigned | ONVOY, LLC - CA | 649C | CHICO | CA |
| 2016-10-19 | 530-636-9XXX | 9000–9999 | Assigned | ONVOY, LLC - CA | 649C | CHICO | 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.