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 |
|---|---|---|---|---|---|---|---|
| 2025-12-17 | 442-494-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | BRAWLEY | CA |
| 2025-12-17 | 442-494-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | BRAWLEY | CA |
| 2025-12-05 | 442-447-2XXX | 2000–2999 | Assigned | PAETEC ITEL, LLC | 829J | BORON | CA |
| 2025-11-28 | 442-429-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | YUCCA VLY | CA |
| 2025-11-25 | 442-389-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | BLYTHE | CA |
| 2025-11-21 | 442-742-7XXX | 7000–7999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | SUMMIT VLY | CA |
| 2025-11-19 | 442-409-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | CALEXICO | CA |
| 2025-11-19 | 442-475-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | CALIFORNCY | CA |
| 2025-10-30 | 442-373-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | BRAWLEY | CA |
| 2025-10-30 | 442-409-4XXX | 4000–4999 | Assigned | TERRA NOVA TELECOM INC. | 145J | CALEXICO | CA |
| 2025-10-30 | 442-413-3XXX | 3000–3999 | Assigned | TERRA NOVA TELECOM INC. | 145J | ENCINITAS | CA |
| 2025-10-30 | 442-494-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | BRAWLEY | CA |
| 2025-10-30 | 442-494-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | BRAWLEY | CA |
| 2025-10-30 | 442-494-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | BRAWLEY | CA |
| 2025-10-30 | 442-866-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | BRAWLEY | CA |
| 2025-10-20 | 442-464-6XXX | 6000–6999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | VISTA | CA |
| 2025-10-17 | 442-428-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | VTVL HSPR | CA |
| 2025-10-17 | 442-493-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | VTVL HSPR | CA |
| 2025-10-16 | 442-998-5XXX | 5000–5999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | PALMDESERT | CA |
| 2025-10-03 | 442-472-8XXX | 8000–8999 | Assigned | ONVOY, LLC - CA | 649C | SAN MARCOS | CA |
| 2025-09-19 | 442-442-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | BRAWLEY | CA |
| 2025-09-19 | 442-442-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | BRAWLEY | CA |
| 2025-09-19 | 442-489-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | BRAWLEY | CA |
| 2025-09-19 | 442-489-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | BRAWLEY | CA |
| 2025-09-17 | 442-409-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | CALEXICO | CA |
| 2025-09-17 | 442-475-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | CALIFORNCY | CA |
| 2025-09-17 | 442-475-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | CALIFORNCY | CA |
| 2025-09-12 | 442-472-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | SAN MARCOS | CA |
| 2025-09-05 | 442-371-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | PALMDESERT | CA |
| 2025-09-05 | 442-371-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | PALMDESERT | CA |
| 2025-09-05 | 442-397-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | PALMDESERT | CA |
| 2025-09-05 | 442-397-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | PALMDESERT | CA |
| 2025-09-05 | 442-470-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | PALMDESERT | CA |
| 2025-09-05 | 442-470-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | PALMDESERT | CA |
| 2025-09-05 | 442-470-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | PALMDESERT | CA |
| 2025-09-05 | 442-998-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | PALMDESERT | CA |
| 2025-09-04 | 442-413-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | ENCINITAS | CA |
| 2025-09-04 | 442-487-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | OCSD CRLS | CA |
| 2025-09-04 | 442-487-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | OCSD CRLS | CA |
| 2025-08-20 | 442-301-2XXX | 2000–2999 | Assigned | PEERLESS NETWORK OF CALIFORNIA, LLC - CA | 373F | JUNE LAKE | CA |
| 2025-08-20 | 442-469-7XXX | 7000–7999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | VICTORVL | CA |
| 2025-08-20 | 442-489-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | BRAWLEY | CA |
| 2025-08-20 | 442-489-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | BRAWLEY | CA |
| 2025-08-20 | 442-489-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | BRAWLEY | CA |
| 2025-08-20 | 442-489-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | BRAWLEY | CA |
| 2025-08-20 | 442-489-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | BRAWLEY | CA |
| 2025-08-20 | 442-489-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | BRAWLEY | CA |
| 2025-08-18 | 442-442-4XXX | 4000–4999 | Assigned | ONVOY, LLC - CA | 649C | BRAWLEY | CA |
| 2025-08-18 | 442-442-7XXX | 7000–7999 | Assigned | ONVOY, LLC - CA | 649C | BRAWLEY | CA |
| 2025-08-18 | 442-442-8XXX | 8000–8999 | Assigned | ONVOY, LLC - CA | 649C | BRAWLEY | 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.