NumberResearchRecent thousands-block assignments
25 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 820
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 |
|---|---|---|---|---|---|---|---|
| 2024-08-26 | 820-226-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | EL RIO | CA |
| 2024-08-19 | 820-227-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SANTAMARIA | CA |
| 2024-08-12 | 820-380-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | PISMOBEACH | CA |
| 2024-08-12 | 820-380-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | PISMOBEACH | CA |
| 2024-07-15 | 820-998-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | ATASCADERO | CA |
| 2024-07-15 | 820-998-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | ATASCADERO | CA |
| 2024-07-11 | 820-227-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | SANTAMARIA | CA |
| 2024-07-05 | 820-228-0XXX | 0000–0999 | Assigned | ONVOY, LLC - CA | 649C | LOMPOC | CA |
| 2024-07-05 | 820-228-1XXX | 1000–1999 | Assigned | ONVOY, LLC - CA | 649C | LOMPOC | CA |
| 2024-07-03 | 820-224-8XXX | 8000–8999 | Assigned | ONVOY, LLC - CA | 649C | NIPOMO | CA |
| 2024-06-18 | 820-223-6XXX | 6000–6999 | Assigned | NUSO, LLC | 732J | SANBARBARA | CA |
| 2024-06-14 | 820-823-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | SANTA YNEZ | CA |
| 2024-06-13 | 820-998-0XXX | 0000–0999 | Assigned | ONVOY, LLC - CA | 649C | ATASCADERO | CA |
| 2024-05-21 | 820-217-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | ATASCADERO | CA |
| 2024-04-17 | 820-777-2XXX | 2000–2999 | Assigned | ONVOY, LLC - CA | 649C | SANTAPAULA | CA |
| 2024-04-12 | 820-223-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SANBARBARA | CA |
| 2024-04-12 | 820-226-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | EL RIO | CA |
| 2024-04-09 | 820-225-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | GUADALUPE | CA |
| 2024-04-09 | 820-225-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | GUADALUPE | CA |
| 2024-04-09 | 820-225-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | GUADALUPE | CA |
| 2024-04-09 | 820-226-1XXX | 1000–1999 | Assigned | ONVOY, LLC - CA | 649C | EL RIO | CA |
| 2024-03-29 | 820-227-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | SANTAMARIA | CA |
| 2024-03-27 | 820-208-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | ATASCADERO | CA |
| 2024-03-27 | 820-208-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | ATASCADERO | CA |
| 2024-03-27 | 820-208-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | ATASCADERO | CA |
| 2024-03-27 | 820-502-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | SIMIVALLEY | CA |
| 2024-03-27 | 820-502-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | SIMIVALLEY | CA |
| 2024-03-25 | 820-222-3XXX | 3000–3999 | Assigned | ONVOY, LLC - CA | 649C | CAMARILLO | CA |
| 2024-03-25 | 820-732-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | VNTRA CNTL | CA |
| 2024-03-21 | 820-226-0XXX | 0000–0999 | Assigned | ONVOY, LLC - CA | 649C | EL RIO | CA |
| 2024-03-20 | 820-345-3XXX | 3000–3999 | Assigned | ONVOY, LLC - CA | 649C | EL RIO | CA |
| 2024-02-13 | 820-218-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | LOMPOC | CA |
| 2024-02-09 | 820-208-3XXX | 3000–3999 | Assigned | ONVOY, LLC - CA | 649C | ATASCADERO | CA |
| 2024-02-02 | 820-223-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | SANBARBARA | CA |
| 2024-02-01 | 820-823-7XXX | 7000–7999 | Assigned | ONVOY, LLC - CA | 649C | SANTA YNEZ | CA |
| 2024-01-29 | 820-218-5XXX | 5000–5999 | Assigned | ONVOY, LLC - CA | 649C | LOMPOC | CA |
| 2024-01-29 | 820-218-6XXX | 6000–6999 | Assigned | ONVOY, LLC - CA | 649C | LOMPOC | CA |
| 2024-01-29 | 820-223-8XXX | 8000–8999 | Assigned | ONVOY, LLC - CA | 649C | SANBARBARA | CA |
| 2024-01-29 | 820-223-9XXX | 9000–9999 | Assigned | ONVOY, LLC - CA | 649C | SANBARBARA | CA |
| 2024-01-24 | 820-221-3XXX | 3000–3999 | Assigned | ONVOY, LLC - CA | 649C | SANTAMARIA | CA |
| 2024-01-24 | 820-221-4XXX | 4000–4999 | Assigned | ONVOY, LLC - CA | 649C | SANTAMARIA | CA |
| 2024-01-24 | 820-221-5XXX | 5000–5999 | Assigned | ONVOY, LLC - CA | 649C | SANTAMARIA | CA |
| 2024-01-24 | 820-221-6XXX | 6000–6999 | Assigned | ONVOY, LLC - CA | 649C | SANTAMARIA | CA |
| 2024-01-24 | 820-221-7XXX | 7000–7999 | Assigned | ONVOY, LLC - CA | 649C | SANTAMARIA | CA |
| 2024-01-24 | 820-502-1XXX | 1000–1999 | Assigned | ONVOY, LLC - CA | 649C | SIMIVALLEY | CA |
| 2024-01-24 | 820-502-2XXX | 2000–2999 | Assigned | ONVOY, LLC - CA | 649C | SIMIVALLEY | CA |
| 2024-01-24 | 820-502-3XXX | 3000–3999 | Assigned | ONVOY, LLC - CA | 649C | SIMIVALLEY | CA |
| 2024-01-24 | 820-502-4XXX | 4000–4999 | Assigned | ONVOY, LLC - CA | 649C | SIMIVALLEY | CA |
| 2024-01-24 | 820-502-8XXX | 8000–8999 | Assigned | ONVOY, LLC - CA | 649C | SIMIVALLEY | CA |
| 2024-01-17 | 820-221-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | SANTAMARIA | 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.