NumberResearchRecent thousands-block assignments
34 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 442
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 | 442-442-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | BRAWLEY | CA |
| 2024-11-21 | 442-480-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | VISTA | CA |
| 2024-11-21 | 442-480-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | VISTA | CA |
| 2024-11-21 | 442-480-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | VISTA | CA |
| 2024-11-21 | 442-480-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | VISTA | CA |
| 2024-11-21 | 442-480-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | VISTA | CA |
| 2024-11-13 | 442-452-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | VALLEY CTR | CA |
| 2024-11-13 | 442-478-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | EL CENTRO | CA |
| 2024-11-12 | 442-245-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | VISTA | CA |
| 2024-11-12 | 442-445-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | BISHOP | CA |
| 2024-11-12 | 442-464-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | VISTA | CA |
| 2024-11-12 | 442-464-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | VISTA | CA |
| 2024-11-12 | 442-479-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | EL CENTRO | CA |
| 2024-11-12 | 442-479-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | EL CENTRO | CA |
| 2024-11-12 | 442-479-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | EL CENTRO | CA |
| 2024-11-12 | 442-479-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | EL CENTRO | CA |
| 2024-11-12 | 442-480-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | VISTA | CA |
| 2024-11-12 | 442-480-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | VISTA | CA |
| 2024-11-12 | 442-480-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | VISTA | CA |
| 2024-11-12 | 442-480-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | VISTA | CA |
| 2024-11-08 | 442-442-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | BRAWLEY | CA |
| 2024-11-04 | 442-478-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | EL CENTRO | CA |
| 2024-10-23 | 442-399-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | EL MIRAGE | CA |
| 2024-10-21 | 442-460-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | CALEXICO | CA |
| 2024-10-18 | 442-478-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | EL CENTRO | CA |
| 2024-10-14 | 442-478-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | EL CENTRO | CA |
| 2024-10-10 | 442-390-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | ENCINITAS | CA |
| 2024-10-09 | 442-474-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | EL CENTRO | CA |
| 2024-10-09 | 442-474-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | EL CENTRO | CA |
| 2024-10-09 | 442-474-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | EL CENTRO | CA |
| 2024-10-09 | 442-474-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | EL CENTRO | CA |
| 2024-10-09 | 442-474-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | EL CENTRO | CA |
| 2024-10-09 | 442-474-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | EL CENTRO | CA |
| 2024-10-09 | 442-478-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | EL CENTRO | CA |
| 2024-10-09 | 442-899-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | WARNER SPG | CA |
| 2024-10-08 | 442-422-1XXX | 1000–1999 | Assigned | AT&T ENTERPRISES, LLC | 516C | SHOSHONE | CA |
| 2024-10-08 | 442-899-2XXX | 2000–2999 | Assigned | AT&T ENTERPRISES, LLC | 516C | WARNER SPG | CA |
| 2024-10-07 | 442-220-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | MT PASS | CA |
| 2024-10-07 | 442-239-8XXX | 8000–8999 | Assigned | AT&T ENTERPRISES, LLC | 516C | DEATH VLY | CA |
| 2024-10-02 | 442-450-4XXX | 4000–4999 | Assigned | ONVOY SPECTRUM, LLC | 624H | TWNTYNPLMS | CA |
| 2024-10-02 | 442-450-5XXX | 5000–5999 | Assigned | ONVOY SPECTRUM, LLC | 624H | TWNTYNPLMS | CA |
| 2024-10-02 | 442-450-6XXX | 6000–6999 | Assigned | ONVOY SPECTRUM, LLC | 624H | TWNTYNPLMS | CA |
| 2024-10-02 | 442-450-7XXX | 7000–7999 | Assigned | ONVOY SPECTRUM, LLC | 624H | TWNTYNPLMS | CA |
| 2024-10-02 | 442-450-9XXX | 9000–9999 | Assigned | ONVOY SPECTRUM, LLC | 624H | TWNTYNPLMS | CA |
| 2024-10-01 | 442-789-7XXX | 7000–7999 | Assigned | PEERLESS NETWORK OF CALIFORNIA, LLC - CA | 373F | WELDON | CA |
| 2024-09-23 | 442-476-0XXX | 0000–0999 | Assigned | LEAP TELECOM, LLC | 616J | PALM SPG | CA |
| 2024-09-20 | 442-475-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | CALIFORNCY | CA |
| 2024-09-20 | 442-475-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | CALIFORNCY | CA |
| 2024-09-19 | 442-472-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SAN MARCOS | CA |
| 2024-09-13 | 442-473-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | VTVL HSPR | 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.