NumberResearchRecent thousands-block assignments
31 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 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 |
|---|---|---|---|---|---|---|---|
| 2007-09-11 | 530-410-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | REDDING | CA |
| 2007-09-11 | 530-838-5XXX | 5000–5999 | Assigned | METROPCS, INC. | 5562 | CORNING | CA |
| 2007-09-11 | 530-844-8XXX | 8000–8999 | Assigned | METROPCS, INC. | 5562 | MARYSVILLE | CA |
| 2007-09-11 | 530-921-6XXX | 6000–6999 | Assigned | METROPCS, INC. | 5562 | REDDING | CA |
| 2007-09-11 | 530-921-7XXX | 7000–7999 | Assigned | METROPCS, INC. | 5562 | REDDING | CA |
| 2007-09-11 | 530-923-5XXX | 5000–5999 | Assigned | METROPCS, INC. | 5562 | MARYSVILLE | CA |
| 2007-09-11 | 530-933-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | MARYSVILLE | CA |
| 2007-09-11 | 530-965-3XXX | 3000–3999 | Assigned | METROPCS, INC. | 5562 | CHICO | CA |
| 2007-09-07 | 530-564-0XXX | 0000–0999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | DAVIS | CA |
| 2007-08-22 | 530-923-2XXX | 2000–2999 | Assigned | COMCAST PHONE OF CALIFORNIA, LLC | 394L | MARYSVILLE | CA |
| 2007-08-16 | 530-923-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | MARYSVILLE | CA |
| 2007-08-14 | 530-638-8XXX | 8000–8999 | Assigned | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | REDDING | CA |
| 2007-08-10 | 530-282-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | OROVILLE | CA |
| 2007-08-09 | 530-405-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | WOODLAND | CA |
| 2007-08-06 | 530-566-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | CHICO | CA |
| 2007-08-02 | 530-348-2XXX | 2000–2999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | COTTONWOOD | CA |
| 2007-08-02 | 530-378-5XXX | 5000–5999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | ANDERSON | CA |
| 2007-08-01 | 530-605-0XXX | 0000–0999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | REDDING | CA |
| 2007-07-20 | 530-368-8XXX | 8000–8999 | Assigned | FIDIUM ENTERPRISE SERVICES, LLC | 3964 | AUBN MAIN | CA |
| 2007-07-19 | 530-863-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | AUBN MAIN | CA |
| 2007-06-28 | 530-366-2XXX | 2000–2999 | Assigned | METROPCS, INC. | 5562 | RED BLUFF | CA |
| 2007-06-26 | 530-797-9XXX | 9000–9999 | Assigned | COMCAST PHONE OF CALIFORNIA, LLC | 394L | GRIDLEY | CA |
| 2007-06-25 | 530-212-7XXX | 7000–7999 | Assigned | ONVOY, LLC - CA | 649C | WINTERS | CA |
| 2007-06-25 | 530-361-9XXX | 9000–9999 | Assigned | COMCAST PHONE OF CALIFORNIA, LLC | 394L | WILLOWS | CA |
| 2007-06-25 | 530-414-7XXX | 7000–7999 | Assigned | ONVOY, LLC - CA | 649C | TRUCKEE | CA |
| 2007-06-25 | 530-501-7XXX | 7000–7999 | Assigned | ONVOY, LLC - CA | 649C | WILLIAMS | CA |
| 2007-06-25 | 530-539-7XXX | 7000–7999 | Assigned | ONVOY, LLC - CA | 649C | SOUTHTAHOE | CA |
| 2007-06-25 | 530-838-9XXX | 9000–9999 | Assigned | COMCAST PHONE OF CALIFORNIA, LLC | 394L | CORNING | CA |
| 2007-06-25 | 530-869-9XXX | 9000–9999 | Assigned | COMCAST PHONE OF CALIFORNIA, LLC | 394L | BIGGS | CA |
| 2007-06-25 | 530-988-9XXX | 9000–9999 | Assigned | COMCAST PHONE OF CALIFORNIA, LLC | 394L | ORLAND | CA |
| 2007-06-14 | 530-410-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | REDDING | CA |
| 2007-06-14 | 530-788-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | MARYSVILLE | CA |
| 2007-06-12 | 530-601-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | DAVIS | CA |
| 2007-06-12 | 530-678-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | DUNSMUIR | CA |
| 2007-06-06 | 530-405-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | WOODLAND | CA |
| 2007-05-31 | 530-240-7XXX | 7000–7999 | Assigned | ONVOY, LLC - CA | 649C | PLVL KYBRZ | CA |
| 2007-05-31 | 530-553-7XXX | 7000–7999 | Assigned | ONVOY, LLC - CA | 649C | NTAH BCWY | CA |
| 2007-05-31 | 530-798-7XXX | 7000–7999 | Assigned | ONVOY, LLC - CA | 649C | GRVY MAIN | CA |
| 2007-05-31 | 530-886-7XXX | 7000–7999 | Assigned | ONVOY, LLC - CA | 649C | AUBN MAIN | CA |
| 2007-05-30 | 530-402-7XXX | 7000–7999 | Assigned | ONVOY, LLC - CA | 649C | WOODLAND | CA |
| 2007-05-30 | 530-845-5XXX | 5000–5999 | Assigned | ONVOY, LLC - CA | 649C | MARYSVILLE | CA |
| 2007-05-16 | 530-600-0XXX | 0000–0999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | SOUTHTAHOE | CA |
| 2007-05-15 | 530-870-8XXX | 8000–8999 | Assigned | COMCAST PHONE OF CALIFORNIA, LLC | 394L | MARYSVILLE | CA |
| 2007-05-08 | 530-402-4XXX | 4000–4999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | WOODLAND | CA |
| 2007-05-07 | 530-329-7XXX | 7000–7999 | Assigned | ONVOY, LLC - CA | 649C | MARYSVILLE | CA |
| 2007-05-07 | 530-333-6XXX | 6000–6999 | Assigned | ONVOY, LLC - CA | 649C | GEORGETOWN | CA |
| 2007-05-07 | 530-506-7XXX | 7000–7999 | Assigned | ONVOY, LLC - CA | 649C | KNIGHTSLDG | CA |
| 2007-05-07 | 530-507-7XXX | 7000–7999 | Assigned | ONVOY, LLC - CA | 649C | ESPARTO | CA |
| 2007-05-07 | 530-696-7XXX | 7000–7999 | Assigned | ONVOY, LLC - CA | 649C | MERIDIAN | CA |
| 2007-05-07 | 530-724-7XXX | 7000–7999 | Assigned | ONVOY, LLC - CA | 649C | DUNNIGAN | 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.