NumberResearchRecent thousands-block assignments
34 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 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 |
|---|---|---|---|---|---|---|---|
| 2024-01-11 | 442-431-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | EL CENTRO | CA |
| 2024-01-11 | 442-431-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | EL CENTRO | CA |
| 2024-01-11 | 442-532-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | EL CENTRO | CA |
| 2024-01-11 | 442-532-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | EL CENTRO | CA |
| 2024-01-11 | 442-532-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | EL CENTRO | CA |
| 2024-01-08 | 442-427-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | OCSD CRLS | CA |
| 2024-01-08 | 442-427-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | OCSD CRLS | CA |
| 2023-12-27 | 442-381-6XXX | 6000–6999 | Assigned | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | INDIO | CA |
| 2023-12-21 | 442-328-5XXX | 5000–5999 | Assigned | COMMIO, LLC | 939H | LONE PINE | CA |
| 2023-12-21 | 442-328-6XXX | 6000–6999 | Assigned | COMMIO, LLC | 939H | LONE PINE | CA |
| 2023-12-21 | 442-371-0XXX | 0000–0999 | Assigned | COMMIO, LLC | 939H | PALMDESERT | CA |
| 2023-12-21 | 442-371-1XXX | 1000–1999 | Assigned | COMMIO, LLC | 939H | PALMDESERT | CA |
| 2023-12-21 | 442-371-9XXX | 9000–9999 | Assigned | COMMIO, LLC | 939H | PALMDESERT | CA |
| 2023-12-21 | 442-374-0XXX | 0000–0999 | Assigned | COMMIO, LLC | 939H | FALLBROOK | CA |
| 2023-12-21 | 442-374-1XXX | 1000–1999 | Assigned | COMMIO, LLC | 939H | FALLBROOK | CA |
| 2023-12-21 | 442-381-0XXX | 0000–0999 | Assigned | COMMIO, LLC | 939H | INDIO | CA |
| 2023-12-21 | 442-381-4XXX | 4000–4999 | Assigned | COMMIO, LLC | 939H | INDIO | CA |
| 2023-12-21 | 442-381-5XXX | 5000–5999 | Assigned | COMMIO, LLC | 939H | INDIO | CA |
| 2023-12-21 | 442-383-0XXX | 0000–0999 | Assigned | COMMIO, LLC | 939H | DSERTHTSPG | CA |
| 2023-12-21 | 442-383-1XXX | 1000–1999 | Assigned | COMMIO, LLC | 939H | DSERTHTSPG | CA |
| 2023-12-21 | 442-383-8XXX | 8000–8999 | Assigned | COMMIO, LLC | 939H | DSERTHTSPG | CA |
| 2023-12-21 | 442-393-8XXX | 8000–8999 | Assigned | COMMIO, LLC | 939H | CALIPATRIA | CA |
| 2023-12-21 | 442-393-9XXX | 9000–9999 | Assigned | COMMIO, LLC | 939H | CALIPATRIA | CA |
| 2023-12-21 | 442-412-5XXX | 5000–5999 | Assigned | COMMIO, LLC | 939H | BRAWLEY | CA |
| 2023-12-21 | 442-412-6XXX | 6000–6999 | Assigned | COMMIO, LLC | 939H | BRAWLEY | CA |
| 2023-12-21 | 442-412-9XXX | 9000–9999 | Assigned | COMMIO, LLC | 939H | BRAWLEY | CA |
| 2023-12-21 | 442-430-1XXX | 1000–1999 | Assigned | COMMIO, LLC | 939H | VISTA | CA |
| 2023-12-21 | 442-430-2XXX | 2000–2999 | Assigned | COMMIO, LLC | 939H | VISTA | CA |
| 2023-12-21 | 442-449-8XXX | 8000–8999 | Assigned | COMMIO, LLC | 939H | OCSD OCSD | CA |
| 2023-12-21 | 442-532-0XXX | 0000–0999 | Assigned | COMMIO, LLC | 939H | EL CENTRO | CA |
| 2023-12-21 | 442-532-1XXX | 1000–1999 | Assigned | COMMIO, LLC | 939H | EL CENTRO | CA |
| 2023-12-21 | 442-744-1XXX | 1000–1999 | Assigned | COMMIO, LLC | 939H | BRIDGEPORT | CA |
| 2023-12-21 | 442-744-5XXX | 5000–5999 | Assigned | COMMIO, LLC | 939H | BRIDGEPORT | CA |
| 2023-12-21 | 442-888-9XXX | 9000–9999 | Assigned | COMMIO, LLC | 939H | OCSD OCSD | CA |
| 2023-12-05 | 442-381-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | INDIO | CA |
| 2023-12-05 | 442-409-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | CALEXICO | CA |
| 2023-12-05 | 442-412-8XXX | 8000–8999 | Assigned | ONVOY SPECTRUM, LLC | 624H | BRAWLEY | CA |
| 2023-12-05 | 442-417-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | CALIFORNCY | CA |
| 2023-12-05 | 442-418-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | PALMDESERT | CA |
| 2023-12-05 | 442-427-0XXX | 0000–0999 | Assigned | ONVOY SPECTRUM, LLC | 624H | OCSD CRLS | CA |
| 2023-12-05 | 442-430-0XXX | 0000–0999 | Assigned | ONVOY SPECTRUM, LLC | 624H | VISTA | CA |
| 2023-12-05 | 442-532-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | EL CENTRO | CA |
| 2023-12-05 | 442-566-7XXX | 7000–7999 | Assigned | ONVOY SPECTRUM, LLC | 624H | VALLEY CTR | CA |
| 2023-12-05 | 442-899-1XXX | 1000–1999 | Assigned | ONVOY SPECTRUM, LLC | 624H | WARNER SPG | CA |
| 2023-12-04 | 442-240-0XXX | 0000–0999 | Assigned | FIVE9, INC. | 598J | RAMONA | CA |
| 2023-11-30 | 442-381-3XXX | 3000–3999 | Assigned | VONAGE AMERICA LLC | 197D | INDIO | CA |
| 2023-11-15 | 442-381-1XXX | 1000–1999 | Assigned | NUSO, LLC | 732J | INDIO | CA |
| 2023-11-15 | 442-381-2XXX | 2000–2999 | Assigned | NUSO, LLC | 732J | INDIO | CA |
| 2023-11-09 | 442-418-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | PALMDESERT | CA |
| 2023-11-01 | 442-416-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SAN MARCOS | 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.