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 |
|---|---|---|---|---|---|---|---|
| 2024-11-25 | 820-236-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SANBARBARA | CA |
| 2024-11-25 | 820-236-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SANBARBARA | CA |
| 2024-11-25 | 820-236-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SANBARBARA | CA |
| 2024-11-25 | 820-236-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SANBARBARA | CA |
| 2024-11-25 | 820-236-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SANBARBARA | CA |
| 2024-11-25 | 820-236-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SANBARBARA | CA |
| 2024-11-25 | 820-236-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SANBARBARA | CA |
| 2024-11-25 | 820-236-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SANBARBARA | CA |
| 2024-11-25 | 820-236-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SANBARBARA | CA |
| 2024-11-13 | 820-223-2XXX | 2000–2999 | Assigned | NUSO, LLC | 732J | SANBARBARA | CA |
| 2024-11-13 | 820-229-0XXX | 0000–0999 | Assigned | NUSO, LLC | 732J | SANBARBARA | CA |
| 2024-11-13 | 820-229-1XXX | 1000–1999 | Assigned | NUSO, LLC | 732J | SANBARBARA | CA |
| 2024-11-13 | 820-236-1XXX | 1000–1999 | Assigned | NUSO, LLC | 478J | SANBARBARA | CA |
| 2024-11-12 | 820-226-2XXX | 2000–2999 | Assigned | PEERLESS NETWORK OF CALIFORNIA, LLC - CA | 373F | EL RIO | CA |
| 2024-11-12 | 820-226-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | EL RIO | CA |
| 2024-11-12 | 820-226-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | EL RIO | CA |
| 2024-11-12 | 820-226-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | EL RIO | CA |
| 2024-11-12 | 820-226-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | EL RIO | CA |
| 2024-11-12 | 820-235-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | VNTRA CNTL | CA |
| 2024-11-07 | 820-235-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | VNTRA CNTL | CA |
| 2024-11-04 | 820-226-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | EL RIO | CA |
| 2024-11-04 | 820-229-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SANBARBARA | CA |
| 2024-11-04 | 820-229-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SANBARBARA | CA |
| 2024-11-01 | 820-228-2XXX | 2000–2999 | Assigned | TWILIO INTERNATIONAL, INC. | 506J | LOMPOC | CA |
| 2024-10-07 | 820-900-8XXX | 8000–8999 | Assigned | AT&T ENTERPRISES, LLC | 516C | BRADLEY | CA |
| 2024-10-02 | 820-229-4XXX | 4000–4999 | Assigned | ONVOY SPECTRUM, LLC | 624H | SANBARBARA | CA |
| 2024-10-02 | 820-229-5XXX | 5000–5999 | Assigned | ONVOY SPECTRUM, LLC | 624H | SANBARBARA | CA |
| 2024-10-02 | 820-229-6XXX | 6000–6999 | Assigned | ONVOY SPECTRUM, LLC | 624H | SANBARBARA | CA |
| 2024-10-02 | 820-229-7XXX | 7000–7999 | Assigned | ONVOY SPECTRUM, LLC | 624H | SANBARBARA | CA |
| 2024-10-02 | 820-229-8XXX | 8000–8999 | Assigned | ONVOY SPECTRUM, LLC | 624H | SANBARBARA | CA |
| 2024-09-23 | 820-233-0XXX | 0000–0999 | Assigned | LEAP TELECOM, LLC | 616J | SNLUSOBSPO | CA |
| 2024-09-19 | 820-228-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | LOMPOC | CA |
| 2024-09-19 | 820-232-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | NEWBURYPRK | CA |
| 2024-09-19 | 820-232-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | NEWBURYPRK | CA |
| 2024-09-19 | 820-232-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | NEWBURYPRK | CA |
| 2024-09-19 | 820-232-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | NEWBURYPRK | CA |
| 2024-09-19 | 820-232-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | NEWBURYPRK | CA |
| 2024-09-19 | 820-232-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | NEWBURYPRK | CA |
| 2024-09-19 | 820-232-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | NEWBURYPRK | CA |
| 2024-09-13 | 820-231-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | CAMARILLO | CA |
| 2024-08-28 | 820-216-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | ARROYOGRND | CA |
| 2024-08-28 | 820-998-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | ATASCADERO | CA |
| 2024-08-28 | 820-998-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | ATASCADERO | CA |
| 2024-08-28 | 820-998-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | ATASCADERO | CA |
| 2024-08-28 | 820-998-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | ATASCADERO | CA |
| 2024-08-28 | 820-998-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | ATASCADERO | CA |
| 2024-08-28 | 820-998-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | ATASCADERO | CA |
| 2024-08-28 | 820-998-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | ATASCADERO | CA |
| 2024-08-27 | 820-229-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SANBARBARA | CA |
| 2024-08-27 | 820-230-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | PASOROBLES | 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.