NumberResearchRecent thousands-block assignments
31 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 |
|---|---|---|---|---|---|---|---|
| 2022-01-07 | 442-532-4XXX | 4000–4999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | EL CENTRO | CA |
| 2022-01-06 | 442-867-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | BARSTOW | CA |
| 2022-01-06 | 442-867-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | BARSTOW | CA |
| 2022-01-06 | 442-867-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | BARSTOW | CA |
| 2022-01-06 | 442-899-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | WARNER SPG | CA |
| 2021-12-22 | 442-369-8XXX | 8000–8999 | Assigned | ONVOY SPECTRUM, LLC | 624H | ENCINITAS | CA |
| 2021-12-22 | 442-369-9XXX | 9000–9999 | Assigned | ONVOY SPECTRUM, LLC | 624H | ENCINITAS | CA |
| 2021-12-07 | 442-370-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | INDIO | CA |
| 2021-11-29 | 442-655-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SAN MARCOS | CA |
| 2021-11-22 | 442-385-0XXX | 0000–0999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7147 | SAN MARCOS | CA |
| 2021-11-22 | 442-385-7XXX | 7000–7999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7147 | SAN MARCOS | CA |
| 2021-11-22 | 442-385-8XXX | 8000–8999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7147 | SAN MARCOS | CA |
| 2021-11-22 | 442-895-8XXX | 8000–8999 | Assigned | TWILIO INTERNATIONAL, INC. | 506J | PALM SPG | CA |
| 2021-11-18 | 442-566-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | VALLEY CTR | CA |
| 2021-11-17 | 442-655-2XXX | 2000–2999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7147 | SAN MARCOS | CA |
| 2021-11-15 | 442-253-3XXX | 3000–3999 | Assigned | ONVOY SPECTRUM, LLC | 624H | CALIPATRIA | CA |
| 2021-11-15 | 442-345-7XXX | 7000–7999 | Assigned | ONVOY SPECTRUM, LLC | 624H | HOLTVILLE | CA |
| 2021-11-15 | 442-345-9XXX | 9000–9999 | Assigned | ONVOY SPECTRUM, LLC | 624H | HOLTVILLE | CA |
| 2021-11-15 | 442-379-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | EL CENTRO | CA |
| 2021-11-15 | 442-379-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | EL CENTRO | CA |
| 2021-11-15 | 442-379-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | EL CENTRO | CA |
| 2021-11-15 | 442-944-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | VISTA | CA |
| 2021-11-12 | 442-283-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | EL CENTRO | CA |
| 2021-11-10 | 442-867-2XXX | 2000–2999 | Assigned | ONVOY, LLC - CA | 649C | BARSTOW | CA |
| 2021-11-10 | 442-867-3XXX | 3000–3999 | Assigned | ONVOY, LLC - CA | 649C | BARSTOW | CA |
| 2021-11-08 | 442-667-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | INYOKERN | CA |
| 2021-11-05 | 442-786-5XXX | 5000–5999 | Assigned | ONVOY SPECTRUM, LLC | 624H | BLYTHE | CA |
| 2021-11-05 | 442-786-8XXX | 8000–8999 | Assigned | ONVOY SPECTRUM, LLC | 624H | BLYTHE | CA |
| 2021-10-29 | 442-370-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | INDIO | CA |
| 2021-10-28 | 442-364-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | BRAWLEY | CA |
| 2021-10-28 | 442-364-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | BRAWLEY | CA |
| 2021-10-28 | 442-364-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | BRAWLEY | CA |
| 2021-10-28 | 442-364-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | BRAWLEY | CA |
| 2021-10-28 | 442-364-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | BRAWLEY | CA |
| 2021-10-28 | 442-364-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | BRAWLEY | CA |
| 2021-10-28 | 442-933-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | INDIO | CA |
| 2021-10-26 | 442-368-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | VICTORVL | CA |
| 2021-10-25 | 442-225-4XXX | 4000–4999 | Assigned | ONVOY SPECTRUM, LLC | 624H | EL CENTRO | CA |
| 2021-10-25 | 442-236-6XXX | 6000–6999 | Assigned | ONVOY SPECTRUM, LLC | 624H | EL CENTRO | CA |
| 2021-10-25 | 442-655-5XXX | 5000–5999 | Assigned | ONVOY SPECTRUM, LLC | 624H | SAN MARCOS | CA |
| 2021-10-25 | 442-655-6XXX | 6000–6999 | Assigned | ONVOY SPECTRUM, LLC | 624H | SAN MARCOS | CA |
| 2021-10-25 | 442-944-4XXX | 4000–4999 | Assigned | FRACTEL, LLC | 965H | VISTA | CA |
| 2021-10-22 | 442-238-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | EL CENTRO | CA |
| 2021-10-22 | 442-369-2XXX | 2000–2999 | Assigned | ONVOY SPECTRUM, LLC | 624H | ENCINITAS | CA |
| 2021-10-22 | 442-369-4XXX | 4000–4999 | Assigned | ONVOY SPECTRUM, LLC | 624H | ENCINITAS | CA |
| 2021-10-22 | 442-456-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | EL CENTRO | CA |
| 2021-10-20 | 442-342-2XXX | 2000–2999 | Assigned | ONVOY SPECTRUM, LLC | 624H | PALM SPG | CA |
| 2021-10-20 | 442-342-6XXX | 6000–6999 | Assigned | ONVOY SPECTRUM, LLC | 624H | PALM SPG | CA |
| 2021-10-20 | 442-342-7XXX | 7000–7999 | Assigned | ONVOY SPECTRUM, LLC | 624H | PALM SPG | CA |
| 2021-10-20 | 442-342-8XXX | 8000–8999 | Assigned | ONVOY SPECTRUM, LLC | 624H | PALM SPG | 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.