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 |
|---|---|---|---|---|---|---|---|
| 2016-08-08 | 424-305-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | LOMITA | CA |
| 2016-08-08 | 424-318-4XXX | 4000–4999 | Assigned | PEERLESS NETWORK OF CALIFORNIA, LLC - CA | 373F | TORRANCE | CA |
| 2016-08-03 | 424-304-9XXX | 9000–9999 | Assigned | HD CARRIER LLC | 321J | REDONDO | CA |
| 2016-08-03 | 424-350-2XXX | 2000–2999 | Assigned | HD CARRIER LLC | 321J | REDONDO | CA |
| 2016-08-03 | 424-452-3XXX | 3000–3999 | Assigned | HD CARRIER LLC | 321J | REDONDO | CA |
| 2016-08-03 | 424-452-4XXX | 4000–4999 | Assigned | HD CARRIER LLC | 321J | REDONDO | CA |
| 2016-08-03 | 424-452-5XXX | 5000–5999 | Assigned | HD CARRIER LLC | 321J | REDONDO | CA |
| 2016-08-02 | 424-308-6XXX | 6000–6999 | Assigned | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | SAN PEDRO | CA |
| 2016-07-25 | 424-389-5XXX | 5000–5999 | Assigned | ONVOY, LLC - CA | 649C | BEVERLYHLS | CA |
| 2016-07-22 | 424-301-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | EL SEGUNDO | CA |
| 2016-07-22 | 424-402-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | W ANGELES | CA |
| 2016-07-21 | 424-318-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | TORRANCE | CA |
| 2016-07-19 | 424-380-4XXX | 4000–4999 | Assigned | ONVOY, LLC - CA | 649C | INGLEWOOD | CA |
| 2016-07-19 | 424-380-5XXX | 5000–5999 | Assigned | ONVOY, LLC - CA | 649C | INGLEWOOD | CA |
| 2016-07-19 | 424-380-6XXX | 6000–6999 | Assigned | ONVOY, LLC - CA | 649C | INGLEWOOD | CA |
| 2016-07-19 | 424-380-7XXX | 7000–7999 | Assigned | ONVOY, LLC - CA | 649C | INGLEWOOD | CA |
| 2016-07-15 | 424-306-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | TORRANCE | CA |
| 2016-07-15 | 424-522-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | BEVERLYHLS | CA |
| 2016-07-15 | 424-522-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | BEVERLYHLS | CA |
| 2016-07-15 | 424-522-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | BEVERLYHLS | CA |
| 2016-07-15 | 424-522-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | BEVERLYHLS | CA |
| 2016-07-15 | 424-522-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | BEVERLYHLS | CA |
| 2016-07-14 | 424-317-2XXX | 2000–2999 | Assigned | ONVOY, LLC - CA | 649C | W ANGELES | CA |
| 2016-07-14 | 424-317-3XXX | 3000–3999 | Assigned | ONVOY, LLC - CA | 649C | W ANGELES | CA |
| 2016-07-14 | 424-317-4XXX | 4000–4999 | Assigned | ONVOY, LLC - CA | 649C | W ANGELES | CA |
| 2016-07-14 | 424-317-9XXX | 9000–9999 | Assigned | ONVOY, LLC - CA | 649C | W ANGELES | CA |
| 2016-07-12 | 424-308-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | SAN PEDRO | CA |
| 2016-07-12 | 424-308-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | SAN PEDRO | CA |
| 2016-07-11 | 424-316-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | SNMN SNMN | CA |
| 2016-07-07 | 424-367-4XXX | 4000–4999 | Assigned | LEVEL 3 TELECOM OF CALIFORNIA, LP - CA | 7718 | EL SEGUNDO | CA |
| 2016-07-06 | 424-581-3XXX | 3000–3999 | Assigned | PAETEC ITEL, LLC | 829J | SNMN SNMN | CA |
| 2016-07-05 | 424-305-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | LOMITA | CA |
| 2016-07-05 | 424-305-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | LOMITA | CA |
| 2016-07-01 | 424-319-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | CMTN GRDN | CA |
| 2016-07-01 | 424-366-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | CMTN CMTN | CA |
| 2016-07-01 | 424-366-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | CMTN CMTN | CA |
| 2016-06-29 | 424-523-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | CULVERCITY | CA |
| 2016-06-29 | 424-542-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | BEVERLYHLS | CA |
| 2016-06-29 | 424-542-7XXX | 7000–7999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | BEVERLYHLS | CA |
| 2016-06-29 | 424-542-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | BEVERLYHLS | CA |
| 2016-06-27 | 424-307-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | HAWTHORNE | CA |
| 2016-06-27 | 424-307-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | HAWTHORNE | CA |
| 2016-06-27 | 424-307-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | HAWTHORNE | CA |
| 2016-06-27 | 424-307-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | HAWTHORNE | CA |
| 2016-06-27 | 424-307-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | HAWTHORNE | CA |
| 2016-06-27 | 424-316-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SNMN SNMN | CA |
| 2016-06-27 | 424-330-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SNMN SNMN | CA |
| 2016-06-27 | 424-330-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SNMN SNMN | CA |
| 2016-06-27 | 424-330-7XXX | 7000–7999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SNMN SNMN | CA |
| 2016-06-27 | 424-330-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SNMN SNMN | 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.