NumberResearchRecent thousands-block assignments
12 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/21/2026
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 424
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 |
|---|---|---|---|---|---|---|---|
| 2015-04-06 | 424-384-1XXX | 1000–1999 | Assigned | PEERLESS NETWORK OF CALIFORNIA, LLC - CA | 373F | SNMN MRVS | CA |
| 2015-04-06 | 424-385-0XXX | 0000–0999 | Assigned | PEERLESS NETWORK OF CALIFORNIA, LLC - CA | 373F | CULVERCITY | CA |
| 2015-04-06 | 424-393-1XXX | 1000–1999 | Assigned | PEERLESS NETWORK OF CALIFORNIA, LLC - CA | 373F | INGLEWOOD | CA |
| 2015-04-03 | 424-386-4XXX | 4000–4999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7139 | BEVERLYHLS | CA |
| 2015-04-02 | 424-387-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | SNMN SNMN | CA |
| 2015-04-01 | 424-387-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | SNMN SNMN | CA |
| 2015-04-01 | 424-387-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | SNMN SNMN | CA |
| 2015-03-30 | 424-365-6XXX | 6000–6999 | Assigned | LEVEL 3 TELECOM OF CALIFORNIA, LP - CA | 7718 | W ANGELES | CA |
| 2015-03-30 | 424-386-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | BEVERLYHLS | CA |
| 2015-03-30 | 424-386-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | BEVERLYHLS | CA |
| 2015-03-30 | 424-386-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | BEVERLYHLS | CA |
| 2015-03-30 | 424-392-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | REDONDO | CA |
| 2015-03-30 | 424-394-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | BEVERLYHLS | CA |
| 2015-03-27 | 424-378-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | LOMITA | CA |
| 2015-03-26 | 424-339-0XXX | 0000–0999 | Assigned | ONVOY, LLC - CA | 649C | SAN PEDRO | CA |
| 2015-03-26 | 424-339-1XXX | 1000–1999 | Assigned | ONVOY, LLC - CA | 649C | SAN PEDRO | CA |
| 2015-03-26 | 424-339-2XXX | 2000–2999 | Assigned | ONVOY, LLC - CA | 649C | SAN PEDRO | CA |
| 2015-03-26 | 424-372-8XXX | 8000–8999 | Assigned | ONVOY, LLC - CA | 649C | W ANGELES | CA |
| 2015-03-26 | 424-393-0XXX | 0000–0999 | Assigned | ONVOY, LLC - CA | 649C | INGLEWOOD | CA |
| 2015-03-26 | 424-394-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | BEVERLYHLS | CA |
| 2015-03-26 | 424-394-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | BEVERLYHLS | CA |
| 2015-03-17 | 424-396-0XXX | 0000–0999 | Assigned | ONVOY, LLC - CA | 649C | CMTN GRDN | CA |
| 2015-03-17 | 424-396-1XXX | 1000–1999 | Assigned | ONVOY, LLC - CA | 649C | CMTN GRDN | CA |
| 2015-03-17 | 424-396-2XXX | 2000–2999 | Assigned | ONVOY, LLC - CA | 649C | CMTN GRDN | CA |
| 2015-03-13 | 424-368-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | SAN PEDRO | CA |
| 2015-03-13 | 424-372-9XXX | 9000–9999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | W ANGELES | CA |
| 2015-03-13 | 424-384-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | SNMN MRVS | CA |
| 2015-03-13 | 424-391-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | HAWTHORNE | CA |
| 2015-03-13 | 424-393-4XXX | 4000–4999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | INGLEWOOD | CA |
| 2015-03-12 | 424-378-1XXX | 1000–1999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | LOMITA | CA |
| 2015-03-12 | 424-387-8XXX | 8000–8999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | SNMN SNMN | CA |
| 2015-03-11 | 424-384-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SNMN MRVS | CA |
| 2015-03-10 | 424-381-0XXX | 0000–0999 | Assigned | ONVOY, LLC - CA | 649C | CMTN CMTN | CA |
| 2015-03-09 | 424-301-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | EL SEGUNDO | CA |
| 2015-03-09 | 424-301-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | EL SEGUNDO | CA |
| 2015-03-09 | 424-391-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | HAWTHORNE | CA |
| 2015-03-09 | 424-391-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | HAWTHORNE | CA |
| 2015-03-09 | 424-391-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | HAWTHORNE | CA |
| 2015-03-09 | 424-391-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | HAWTHORNE | CA |
| 2015-03-09 | 424-396-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | CMTN GRDN | CA |
| 2015-03-09 | 424-396-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | CMTN GRDN | CA |
| 2015-03-09 | 424-396-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | CMTN GRDN | CA |
| 2015-03-06 | 424-381-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | CMTN CMTN | CA |
| 2015-03-06 | 424-381-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | CMTN CMTN | CA |
| 2015-03-06 | 424-381-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | CMTN CMTN | CA |
| 2015-03-06 | 424-381-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | CMTN CMTN | CA |
| 2015-03-06 | 424-381-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | CMTN CMTN | CA |
| 2015-03-06 | 424-392-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | REDONDO | CA |
| 2015-03-06 | 424-392-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | REDONDO | CA |
| 2015-03-05 | 424-384-0XXX | 0000–0999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | SNMN MRVS | CA |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/21/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.