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 |
|---|---|---|---|---|---|---|---|
| 2016-08-18 | 442-287-8XXX | 8000–8999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | OCSD CRLS | CA |
| 2016-08-18 | 442-291-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | VISTA | CA |
| 2016-08-17 | 442-228-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | BISHOP | CA |
| 2016-08-16 | 442-327-9XXX | 9000–9999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | VICTORVL | CA |
| 2016-08-15 | 442-207-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | FALLBROOK | CA |
| 2016-08-12 | 442-267-5XXX | 5000–5999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | VTVL HSPR | CA |
| 2016-08-12 | 442-294-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | RIDGECREST | CA |
| 2016-08-12 | 442-347-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | BARSTOW | CA |
| 2016-08-10 | 442-249-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | VTVL ADLN | CA |
| 2016-08-10 | 442-274-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | PALMDESERT | CA |
| 2016-08-10 | 442-287-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | OCSD CRLS | CA |
| 2016-08-08 | 442-202-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | BRAWLEY | CA |
| 2016-08-08 | 442-202-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | BRAWLEY | CA |
| 2016-07-28 | 442-255-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | VICTORVL | CA |
| 2016-07-28 | 442-255-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | VICTORVL | CA |
| 2016-07-26 | 442-291-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | VISTA | CA |
| 2016-07-25 | 442-256-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | INDIO | CA |
| 2016-07-21 | 442-204-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | VISTA | CA |
| 2016-07-21 | 442-252-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | CALEXICO | CA |
| 2016-07-21 | 442-286-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | ESCONDIDO | CA |
| 2016-07-20 | 442-268-1XXX | 1000–1999 | Assigned | NUSO, LLC | 732J | PALM SPG | CA |
| 2016-07-19 | 442-258-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | EL CENTRO | CA |
| 2016-07-19 | 442-258-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | EL CENTRO | CA |
| 2016-07-19 | 442-286-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | ESCONDIDO | CA |
| 2016-07-14 | 442-206-0XXX | 0000–0999 | Assigned | ONVOY, LLC - CA | 649C | IMPERIAL | CA |
| 2016-07-14 | 442-206-1XXX | 1000–1999 | Assigned | ONVOY, LLC - CA | 649C | IMPERIAL | CA |
| 2016-07-11 | 442-295-4XXX | 4000–4999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | BARSTOW | CA |
| 2016-07-05 | 442-271-7XXX | 7000–7999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | EL CENTRO | CA |
| 2016-06-27 | 442-268-0XXX | 0000–0999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | PALM SPG | CA |
| 2016-06-27 | 442-271-1XXX | 1000–1999 | Assigned | METROPCS, INC. | 5562 | EL CENTRO | CA |
| 2016-06-24 | 442-254-4XXX | 4000–4999 | Assigned | AT&T ENTERPRISES, LLC | 516C | FALLBROOK | CA |
| 2016-06-22 | 442-204-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | VISTA | CA |
| 2016-06-22 | 442-204-1XXX | 1000–1999 | Assigned | ONVOY, LLC - CA | 649C | VISTA | CA |
| 2016-06-22 | 442-204-3XXX | 3000–3999 | Assigned | ONVOY, LLC - CA | 649C | VISTA | CA |
| 2016-06-21 | 442-278-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | VALLEY CTR | CA |
| 2016-06-20 | 442-202-3XXX | 3000–3999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | BRAWLEY | CA |
| 2016-06-10 | 442-202-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | BRAWLEY | CA |
| 2016-06-10 | 442-202-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | BRAWLEY | CA |
| 2016-06-10 | 442-294-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | RIDGECREST | CA |
| 2016-06-03 | 442-262-2XXX | 2000–2999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7147 | OCSD OCSD | CA |
| 2016-05-27 | 442-269-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | JOSHUATREE | CA |
| 2016-05-27 | 442-286-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | ESCONDIDO | CA |
| 2016-05-20 | 442-202-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7147 | BRAWLEY | CA |
| 2016-05-19 | 442-456-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | EL CENTRO | CA |
| 2016-05-17 | 442-205-0XXX | 0000–0999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | YUCCA VLY | CA |
| 2016-05-17 | 442-456-8XXX | 8000–8999 | Assigned | METROPCS, INC. | 5562 | EL CENTRO | CA |
| 2016-05-16 | 442-204-7XXX | 7000–7999 | Assigned | HD CARRIER LLC | 321J | VISTA | CA |
| 2016-05-16 | 442-204-8XXX | 8000–8999 | Assigned | HD CARRIER LLC | 321J | VISTA | CA |
| 2016-05-16 | 442-204-9XXX | 9000–9999 | Assigned | HD CARRIER LLC | 321J | VISTA | CA |
| 2016-05-16 | 442-206-7XXX | 7000–7999 | Assigned | ONVOY, LLC - CA | 649C | IMPERIAL | 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.