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 |
|---|---|---|---|---|---|---|---|
| 2016-05-16 | 442-206-8XXX | 8000–8999 | Assigned | ONVOY, LLC - CA | 649C | IMPERIAL | CA |
| 2016-05-11 | 442-205-9XXX | 9000–9999 | Assigned | METROPCS NETWORKS, LLC | 899D | YUCCA VLY | CA |
| 2016-05-04 | 442-252-7XXX | 7000–7999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | CALEXICO | CA |
| 2016-05-04 | 442-287-6XXX | 6000–6999 | Assigned | LEVEL 3 TELECOM OF CALIFORNIA, LP - CA | 7718 | OCSD CRLS | CA |
| 2016-04-25 | 442-204-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | VISTA | CA |
| 2016-04-25 | 442-204-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | VISTA | CA |
| 2016-04-25 | 442-235-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | BARSTOW | CA |
| 2016-04-25 | 442-235-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | BARSTOW | CA |
| 2016-04-25 | 442-615-7XXX | 7000–7999 | Assigned | AT&T ENTERPRISES, LLC | 516C | OCSD OCSD | CA |
| 2016-04-21 | 442-256-4XXX | 4000–4999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | INDIO | CA |
| 2016-04-15 | 442-247-3XXX | 3000–3999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7139 | CALIFORNCY | CA |
| 2016-04-15 | 442-247-5XXX | 5000–5999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7139 | CALIFORNCY | CA |
| 2016-04-12 | 442-204-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | VISTA | CA |
| 2016-04-11 | 442-202-1XXX | 1000–1999 | Assigned | ONVOY, LLC - CA | 649C | BRAWLEY | CA |
| 2016-04-11 | 442-202-2XXX | 2000–2999 | Assigned | ONVOY, LLC - CA | 649C | BRAWLEY | CA |
| 2016-04-05 | 442-202-0XXX | 0000–0999 | Assigned | ONVOY, LLC - CA | 649C | BRAWLEY | CA |
| 2016-04-05 | 442-251-5XXX | 5000–5999 | Assigned | ONVOY, LLC - CA | 649C | VTVL HSPR | CA |
| 2016-04-05 | 442-251-7XXX | 7000–7999 | Assigned | ONVOY, LLC - CA | 649C | VTVL HSPR | CA |
| 2016-04-05 | 442-269-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | JOSHUATREE | CA |
| 2016-03-29 | 442-282-5XXX | 5000–5999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | PALMDESERT | CA |
| 2016-03-24 | 442-248-4XXX | 4000–4999 | Assigned | ONVOY, LLC - CA | 649C | ESCONDIDO | CA |
| 2016-03-24 | 442-257-1XXX | 1000–1999 | Assigned | ONVOY, LLC - CA | 649C | ESCONDIDO | CA |
| 2016-03-24 | 442-263-3XXX | 3000–3999 | Assigned | ONVOY, LLC - CA | 649C | PAUMA VLY | CA |
| 2016-03-24 | 442-263-4XXX | 4000–4999 | Assigned | ONVOY, LLC - CA | 649C | PAUMA VLY | CA |
| 2016-03-21 | 442-203-0XXX | 0000–0999 | Assigned | ONVOY, LLC - CA | 649C | BRIDGEPORT | CA |
| 2016-03-21 | 442-203-1XXX | 1000–1999 | Assigned | ONVOY, LLC - CA | 649C | BRIDGEPORT | CA |
| 2016-03-11 | 442-202-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | BRAWLEY | CA |
| 2016-03-11 | 442-253-9XXX | 9000–9999 | Assigned | ONVOY, LLC - CA | 649C | CALIPATRIA | CA |
| 2016-03-03 | 442-282-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | PALMDESERT | CA |
| 2016-03-02 | 442-275-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | PALM SPG | CA |
| 2016-03-02 | 442-275-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | PALM SPG | CA |
| 2016-03-02 | 442-275-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | PALM SPG | CA |
| 2016-03-02 | 442-275-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | PALM SPG | CA |
| 2016-03-01 | 442-267-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | VTVL HSPR | CA |
| 2016-02-29 | 442-325-3XXX | 3000–3999 | Assigned | ONVOY, LLC - CA | 649C | OCSD CRLS | CA |
| 2016-02-29 | 442-325-9XXX | 9000–9999 | Assigned | ONVOY, LLC - CA | 649C | OCSD CRLS | CA |
| 2016-02-26 | 442-249-3XXX | 3000–3999 | Assigned | METROPCS NETWORKS, LLC | 899D | VTVL ADLN | CA |
| 2016-02-26 | 442-301-0XXX | 0000–0999 | Assigned | ONVOY, LLC - CA | 649C | JUNE LAKE | CA |
| 2016-02-26 | 442-301-1XXX | 1000–1999 | Assigned | ONVOY, LLC - CA | 649C | JUNE LAKE | CA |
| 2016-02-24 | 442-201-0XXX | 0000–0999 | Assigned | ONVOY, LLC - CA | 649C | LEE VINING | CA |
| 2016-02-24 | 442-201-1XXX | 1000–1999 | Assigned | ONVOY, LLC - CA | 649C | LEE VINING | CA |
| 2016-02-23 | 442-321-4XXX | 4000–4999 | Assigned | ONVOY, LLC - CA | 649C | HOMESTDVLY | CA |
| 2016-02-23 | 442-321-5XXX | 5000–5999 | Assigned | ONVOY, LLC - CA | 649C | HOMESTDVLY | CA |
| 2016-02-22 | 442-233-2XXX | 2000–2999 | Assigned | ONVOY, LLC - CA | 649C | LENWOOD | CA |
| 2016-02-22 | 442-233-3XXX | 3000–3999 | Assigned | ONVOY, LLC - CA | 649C | LENWOOD | CA |
| 2016-02-22 | 442-239-2XXX | 2000–2999 | Assigned | ONVOY, LLC - CA | 649C | DEATH VLY | CA |
| 2016-02-22 | 442-246-4XXX | 4000–4999 | Assigned | ONVOY, LLC - CA | 649C | MORONGOVLY | CA |
| 2016-02-22 | 442-246-5XXX | 5000–5999 | Assigned | ONVOY, LLC - CA | 649C | MORONGOVLY | CA |
| 2016-02-22 | 442-254-6XXX | 6000–6999 | Assigned | ONVOY, LLC - CA | 649C | FALLBROOK | CA |
| 2016-02-22 | 442-254-7XXX | 7000–7999 | Assigned | ONVOY, LLC - CA | 649C | FALLBROOK | 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.