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 |
|---|---|---|---|---|---|---|---|
| 2018-04-24 | 442-272-4XXX | 4000–4999 | Assigned | INTEGRATED PATH COMMUNICATIONS, LLC - CA | 707H | INYOKERN | CA |
| 2018-04-24 | 442-294-5XXX | 5000–5999 | Assigned | INTEGRATED PATH COMMUNICATIONS, LLC - CA | 707H | RIDGECREST | CA |
| 2018-04-24 | 442-296-9XXX | 9000–9999 | Assigned | INTEGRATED PATH COMMUNICATIONS, LLC - CA | 707H | CROWLEY LK | CA |
| 2018-04-24 | 442-301-3XXX | 3000–3999 | Assigned | INTEGRATED PATH COMMUNICATIONS, LLC - CA | 707H | JUNE LAKE | CA |
| 2018-04-24 | 442-326-6XXX | 6000–6999 | Assigned | INTEGRATED PATH COMMUNICATIONS, LLC - CA | 707H | INDEPNDNCE | CA |
| 2018-04-12 | 442-212-3XXX | 3000–3999 | Assigned | METROPCS NETWORKS, LLC | 899D | PALM SPG | CA |
| 2018-04-12 | 442-212-4XXX | 4000–4999 | Assigned | METROPCS NETWORKS, LLC | 899D | PALM SPG | CA |
| 2018-04-12 | 442-212-5XXX | 5000–5999 | Assigned | METROPCS NETWORKS, LLC | 899D | PALM SPG | CA |
| 2018-04-12 | 442-219-4XXX | 4000–4999 | Assigned | METROPCS NETWORKS, LLC | 899D | VICTORVL | CA |
| 2018-04-12 | 442-363-0XXX | 0000–0999 | Assigned | METROPCS NETWORKS, LLC | 899D | VTVL ADLN | CA |
| 2018-04-12 | 442-484-6XXX | 6000–6999 | Assigned | METROPCS NETWORKS, LLC | 899D | INDIO | CA |
| 2018-04-12 | 442-484-7XXX | 7000–7999 | Assigned | METROPCS NETWORKS, LLC | 899D | INDIO | CA |
| 2018-04-11 | 442-280-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | BARSTOW | CA |
| 2018-04-11 | 442-280-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | BARSTOW | CA |
| 2018-04-10 | 442-382-8XXX | 8000–8999 | Assigned | METROPCS NETWORKS, LLC | 899D | VTVL HSPR | CA |
| 2018-04-10 | 442-382-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | VTVL HSPR | CA |
| 2018-04-04 | 442-277-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7147 | ESCONDIDO | CA |
| 2018-03-29 | 442-279-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | BRAWLEY | CA |
| 2018-03-29 | 442-279-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | BRAWLEY | CA |
| 2018-03-27 | 442-363-3XXX | 3000–3999 | Assigned | FRONTIER CALIFORNIA INC. | 4420 | VTVL ADLN | CA |
| 2018-03-27 | 442-363-4XXX | 4000–4999 | Assigned | FRONTIER CALIFORNIA INC. | 4420 | VTVL ADLN | CA |
| 2018-03-27 | 442-363-7XXX | 7000–7999 | Assigned | FRONTIER CALIFORNIA INC. | 4420 | VTVL ADLN | CA |
| 2018-03-21 | 442-334-5XXX | 5000–5999 | Assigned | PEERLESS NETWORK OF CALIFORNIA, LLC - CA | 373F | PALMDESERT | CA |
| 2018-03-21 | 442-484-8XXX | 8000–8999 | Assigned | METROPCS NETWORKS, LLC | 899D | INDIO | CA |
| 2018-03-19 | 442-221-8XXX | 8000–8999 | Assigned | ONVOY, LLC - CA | 649C | BENTON | CA |
| 2018-03-19 | 442-221-9XXX | 9000–9999 | Assigned | ONVOY, LLC - CA | 649C | BENTON | CA |
| 2018-03-19 | 442-800-6XXX | 6000–6999 | Assigned | METROPCS NETWORKS, LLC | 899D | VTVL HSPR | CA |
| 2018-03-16 | 442-217-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | VALLEY CTR | CA |
| 2018-01-26 | 442-484-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | INDIO | CA |
| 2018-01-23 | 442-250-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | CALEXICO | CA |
| 2018-01-11 | 442-294-4XXX | 4000–4999 | Assigned | MCC TELEPHONY OF THE WEST, LLC - CA | 857F | RIDGECREST | CA |
| 2017-12-22 | 442-219-2XXX | 2000–2999 | Assigned | ONVOY, LLC - CA | 649C | VICTORVL | CA |
| 2017-12-22 | 442-277-0XXX | 0000–0999 | Assigned | ONVOY, LLC - CA | 649C | ESCONDIDO | CA |
| 2017-12-22 | 442-277-2XXX | 2000–2999 | Assigned | ONVOY, LLC - CA | 649C | ESCONDIDO | CA |
| 2017-12-21 | 442-363-1XXX | 1000–1999 | Assigned | FRONTIER CALIFORNIA INC. | 4420 | VTVL ADLN | CA |
| 2017-12-14 | 442-270-1XXX | 1000–1999 | Assigned | METROPCS, INC. | 5562 | EL CENTRO | CA |
| 2017-12-14 | 442-270-2XXX | 2000–2999 | Assigned | METROPCS, INC. | 5562 | EL CENTRO | CA |
| 2017-12-12 | 442-230-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | BRAWLEY | CA |
| 2017-12-12 | 442-230-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | BRAWLEY | CA |
| 2017-12-08 | 442-230-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | BRAWLEY | CA |
| 2017-12-07 | 442-291-1XXX | 1000–1999 | Assigned | ONVOY, LLC - CA | 649C | VISTA | CA |
| 2017-12-07 | 442-291-2XXX | 2000–2999 | Assigned | ONVOY, LLC - CA | 649C | VISTA | CA |
| 2017-12-06 | 442-249-5XXX | 5000–5999 | Assigned | ONVOY, LLC - CA | 649C | VTVL ADLN | CA |
| 2017-11-28 | 442-263-7XXX | 7000–7999 | Assigned | ONVOY, LLC - CA | 649C | PAUMA VLY | CA |
| 2017-11-27 | 442-296-6XXX | 6000–6999 | Assigned | ONVOY, LLC - CA | 649C | CROWLEY LK | CA |
| 2017-11-15 | 442-268-9XXX | 9000–9999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | PALM SPG | CA |
| 2017-11-15 | 442-334-7XXX | 7000–7999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | PALMDESERT | CA |
| 2017-11-08 | 442-260-1XXX | 1000–1999 | Assigned | METROPCS NETWORKS, LLC | 899D | DSERTHTSPG | CA |
| 2017-11-08 | 442-295-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | BARSTOW | CA |
| 2017-11-06 | 442-215-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | INDIO | 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.