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 |
|---|---|---|---|---|---|---|---|
| 2014-03-05 | 442-300-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | INDIO | CA |
| 2014-02-27 | 442-224-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | VISTA | CA |
| 2014-02-27 | 442-224-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | VISTA | CA |
| 2014-02-27 | 442-227-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | PALMDESERT | CA |
| 2014-02-27 | 442-227-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | PALMDESERT | CA |
| 2014-02-27 | 442-500-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | OCSD OCSD | CA |
| 2014-02-27 | 442-500-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | OCSD OCSD | CA |
| 2014-02-26 | 442-999-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | ESCONDIDO | CA |
| 2014-02-26 | 442-999-7XXX | 7000–7999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | ESCONDIDO | CA |
| 2014-02-25 | 442-226-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | BRAWLEY | CA |
| 2014-02-25 | 442-231-8XXX | 8000–8999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | EL CENTRO | CA |
| 2014-02-05 | 442-227-4XXX | 4000–4999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | PALMDESERT | CA |
| 2014-02-04 | 442-242-7XXX | 7000–7999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | VICTORVL | CA |
| 2014-01-30 | 442-300-2XXX | 2000–2999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | INDIO | CA |
| 2014-01-21 | 442-224-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | VISTA | CA |
| 2014-01-21 | 442-300-1XXX | 1000–1999 | Assigned | METROPCS NETWORKS, LLC | 899D | INDIO | CA |
| 2014-01-08 | 442-224-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | VISTA | CA |
| 2014-01-08 | 442-224-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | VISTA | CA |
| 2014-01-08 | 442-300-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | INDIO | CA |
| 2014-01-07 | 442-229-9XXX | 9000–9999 | Assigned | METROPCS NETWORKS, LLC | 899D | VICTORVL | CA |
| 2013-12-16 | 442-227-3XXX | 3000–3999 | Assigned | ONVOY, LLC - CA | 649C | PALMDESERT | CA |
| 2013-12-10 | 442-300-3XXX | 3000–3999 | Assigned | ONVOY, LLC - CA | 649C | INDIO | CA |
| 2013-11-20 | 442-229-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | VICTORVL | CA |
| 2013-11-20 | 442-229-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | VICTORVL | CA |
| 2013-11-15 | 442-227-0XXX | 0000–0999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | PALMDESERT | CA |
| 2013-11-06 | 442-242-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | VICTORVL | CA |
| 2013-11-05 | 442-244-9XXX | 9000–9999 | Assigned | ONVOY, LLC - CA | 649C | OCSD CRLS | CA |
| 2013-11-04 | 442-228-4XXX | 4000–4999 | Assigned | CSC VOICE, LLC | 612K | BISHOP | CA |
| 2013-11-04 | 442-228-5XXX | 5000–5999 | Assigned | CSC VOICE, LLC | 612K | BISHOP | CA |
| 2013-11-01 | 442-244-7XXX | 7000–7999 | Assigned | ONVOY, LLC - CA | 649C | OCSD CRLS | CA |
| 2013-11-01 | 442-244-8XXX | 8000–8999 | Assigned | ONVOY, LLC - CA | 649C | OCSD CRLS | CA |
| 2013-10-31 | 442-400-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | INDIO | CA |
| 2013-10-31 | 442-444-9XXX | 9000–9999 | Assigned | ONVOY, LLC - CA | 649C | FALLBROOK | CA |
| 2013-10-31 | 442-900-7XXX | 7000–7999 | Assigned | ONVOY, LLC - CA | 649C | OCOTILLO | CA |
| 2013-10-31 | 442-900-8XXX | 8000–8999 | Assigned | ONVOY, LLC - CA | 649C | OCOTILLO | CA |
| 2013-10-30 | 442-400-8XXX | 8000–8999 | Assigned | METROPCS NETWORKS, LLC | 899D | INDIO | CA |
| 2013-10-18 | 442-227-1XXX | 1000–1999 | Assigned | HD CARRIER LLC | 321J | PALMDESERT | CA |
| 2013-10-18 | 442-244-4XXX | 4000–4999 | Assigned | COMCAST PHONE OF CALIFORNIA, LLC | 394L | OCSD CRLS | CA |
| 2013-10-04 | 442-500-3XXX | 3000–3999 | Assigned | PEERLESS NETWORK OF CALIFORNIA, LLC - CA | 373F | OCSD OCSD | CA |
| 2013-09-23 | 442-226-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | BRAWLEY | CA |
| 2013-09-06 | 442-400-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | INDIO | CA |
| 2013-09-05 | 442-666-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | PALMDESERT | CA |
| 2013-08-23 | 442-220-7XXX | 7000–7999 | Assigned | ONVOY, LLC - CA | 649C | MT PASS | CA |
| 2013-08-23 | 442-600-7XXX | 7000–7999 | Assigned | ONVOY, LLC - CA | 649C | VTVL HSPR | CA |
| 2013-08-13 | 442-221-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | BENTON | CA |
| 2013-08-05 | 442-244-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | OCSD CRLS | CA |
| 2013-07-15 | 442-226-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | BRAWLEY | CA |
| 2013-07-10 | 442-300-9XXX | 9000–9999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | INDIO | CA |
| 2013-07-09 | 442-242-9XXX | 9000–9999 | Assigned | PAETEC ITEL, LLC | 829J | VICTORVL | CA |
| 2013-06-19 | 442-244-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | OCSD CRLS | 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.