NumberResearchRecent thousands-block assignments
17 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 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 |
|---|---|---|---|---|---|---|---|
| 2008-09-30 | 424-442-1XXX | 1000–1999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | W ANGELES | CA |
| 2008-09-26 | 424-245-1XXX | 1000–1999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | BEVERLYHLS | CA |
| 2008-09-26 | 424-245-2XXX | 2000–2999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | BEVERLYHLS | CA |
| 2008-09-24 | 424-704-2XXX | 2000–2999 | Assigned | ONVOY, LLC - CA | 649C | CMTN CMTN | CA |
| 2008-09-18 | 424-229-7XXX | 7000–7999 | Assigned | PAETEC ITEL, LLC | 829J | SNMN SNMN | CA |
| 2008-09-18 | 424-229-8XXX | 8000–8999 | Assigned | PAETEC ITEL, LLC | 829J | SNMN SNMN | CA |
| 2008-09-16 | 424-442-2XXX | 2000–2999 | Assigned | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | W ANGELES | CA |
| 2008-09-12 | 424-224-6XXX | 6000–6999 | Assigned | METROPCS NETWORKS, LLC | 899D | SAN PEDRO | CA |
| 2008-09-12 | 424-224-8XXX | 8000–8999 | Assigned | METROPCS NETWORKS, LLC | 899D | SAN PEDRO | CA |
| 2008-09-12 | 424-263-0XXX | 0000–0999 | Assigned | METROPCS NETWORKS, LLC | 899D | LOMITA | CA |
| 2008-09-12 | 424-263-1XXX | 1000–1999 | Assigned | METROPCS NETWORKS, LLC | 899D | LOMITA | CA |
| 2008-09-08 | 424-214-1XXX | 1000–1999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | SNMN SNMN | CA |
| 2008-09-08 | 424-214-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | SNMN SNMN | CA |
| 2008-09-08 | 424-744-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | SNMN SNMN | CA |
| 2008-09-02 | 424-646-5XXX | 5000–5999 | Assigned | PACIFIC BELL | 9740 | INGLEWOOD | CA |
| 2008-09-02 | 424-646-6XXX | 6000–6999 | Assigned | PACIFIC BELL | 9740 | INGLEWOOD | CA |
| 2008-09-02 | 424-646-7XXX | 7000–7999 | Assigned | PACIFIC BELL | 9740 | INGLEWOOD | CA |
| 2008-09-02 | 424-646-8XXX | 8000–8999 | Assigned | PACIFIC BELL | 9740 | INGLEWOOD | CA |
| 2008-09-02 | 424-646-9XXX | 9000–9999 | Assigned | PACIFIC BELL | 9740 | INGLEWOOD | CA |
| 2008-08-28 | 424-221-6XXX | 6000–6999 | Assigned | METROPCS NETWORKS, LLC | 899D | CMTN GRDN | CA |
| 2008-08-22 | 424-241-4XXX | 4000–4999 | Assigned | METROPCS NETWORKS, LLC | 899D | REDONDO | CA |
| 2008-08-22 | 424-241-5XXX | 5000–5999 | Assigned | METROPCS NETWORKS, LLC | 899D | REDONDO | CA |
| 2008-08-22 | 424-241-6XXX | 6000–6999 | Assigned | METROPCS NETWORKS, LLC | 899D | REDONDO | CA |
| 2008-08-21 | 424-241-1XXX | 1000–1999 | Assigned | PAETEC ITEL, LLC | 829J | REDONDO | CA |
| 2008-08-20 | 424-243-1XXX | 1000–1999 | Assigned | METROPCS NETWORKS, LLC | 899D | INGLEWOOD | CA |
| 2008-08-11 | 424-220-4XXX | 4000–4999 | Assigned | ONVOY, LLC - CA | 649C | EL SEGUNDO | CA |
| 2008-08-05 | 424-270-8XXX | 8000–8999 | Assigned | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | W ANGELES | CA |
| 2008-08-05 | 424-652-3XXX | 3000–3999 | Assigned | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | W ANGELES | CA |
| 2008-08-05 | 424-731-6XXX | 6000–6999 | Assigned | METROPCS NETWORKS, LLC | 899D | TORRANCE | CA |
| 2008-08-04 | 424-230-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | BEVERLYHLS | CA |
| 2008-08-04 | 424-543-0XXX | 0000–0999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | CULVERCITY | CA |
| 2008-07-23 | 424-264-8XXX | 8000–8999 | Assigned | METROPCS NETWORKS, LLC | 899D | SAN PEDRO | CA |
| 2008-07-21 | 424-230-8XXX | 8000–8999 | Assigned | ONVOY, LLC - CA | 649C | BEVERLYHLS | CA |
| 2008-07-21 | 424-234-4XXX | 4000–4999 | Assigned | ONVOY, LLC - CA | 649C | MALIBU | CA |
| 2008-07-21 | 424-243-4XXX | 4000–4999 | Assigned | ONVOY, LLC - CA | 649C | INGLEWOOD | CA |
| 2008-07-18 | 424-226-0XXX | 0000–0999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | AVALON | CA |
| 2008-07-18 | 424-652-0XXX | 0000–0999 | Assigned | METROPCS NETWORKS, LLC | 899D | W ANGELES | CA |
| 2008-07-17 | 424-206-6XXX | 6000–6999 | Assigned | ONVOY, LLC - CA | 649C | REDONDO | CA |
| 2008-07-17 | 424-230-3XXX | 3000–3999 | Assigned | ONVOY, LLC - CA | 649C | BEVERLYHLS | CA |
| 2008-07-17 | 424-625-7XXX | 7000–7999 | Assigned | ONVOY, LLC - CA | 649C | SNMN MRVS | CA |
| 2008-07-17 | 424-672-3XXX | 3000–3999 | Assigned | ONVOY, LLC - CA | 649C | CULVERCITY | CA |
| 2008-07-11 | 424-222-6XXX | 6000–6999 | Assigned | METROPCS NETWORKS, LLC | 899D | LOMITA | CA |
| 2008-06-27 | 424-228-2XXX | 2000–2999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | SNMN MRVS | CA |
| 2008-06-27 | 424-232-0XXX | 0000–0999 | Assigned | ONVOY, LLC - CA | 649C | CMTN GRDN | CA |
| 2008-06-26 | 424-835-4XXX | 4000–4999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | SNMN MRVS | CA |
| 2008-06-25 | 424-442-3XXX | 3000–3999 | Assigned | PAETEC ITEL, LLC | 829J | W ANGELES | CA |
| 2008-06-25 | 424-442-4XXX | 4000–4999 | Assigned | PAETEC ITEL, LLC | 829J | W ANGELES | CA |
| 2008-06-25 | 424-442-5XXX | 5000–5999 | Assigned | PAETEC ITEL, LLC | 829J | W ANGELES | CA |
| 2008-06-25 | 424-442-6XXX | 6000–6999 | Assigned | PAETEC ITEL, LLC | 829J | W ANGELES | CA |
| 2008-06-25 | 424-442-7XXX | 7000–7999 | Assigned | PAETEC ITEL, LLC | 829J | W ANGELES | 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.