NumberResearchRecent thousands-block assignments
12 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 |
|---|---|---|---|---|---|---|---|
| 2017-05-22 | 424-528-1XXX | 1000–1999 | Assigned | TELNYX LLC | 073H | CMTN GRDN | CA |
| 2017-05-22 | 424-537-5XXX | 5000–5999 | Assigned | TELNYX LLC | 073H | SNMN MRVS | CA |
| 2017-05-22 | 424-538-1XXX | 1000–1999 | Assigned | TELNYX LLC | 073H | SNMN SNMN | CA |
| 2017-05-18 | 424-528-0XXX | 0000–0999 | Assigned | ONVOY, LLC - CA | 649C | CMTN GRDN | CA |
| 2017-05-16 | 424-414-2XXX | 2000–2999 | Assigned | ONVOY, LLC - CA | 649C | INGLEWOOD | CA |
| 2017-05-16 | 424-501-2XXX | 2000–2999 | Assigned | ONVOY, LLC - CA | 649C | CULVERCITY | CA |
| 2017-05-15 | 424-267-1XXX | 1000–1999 | Assigned | ONVOY, LLC - CA | 649C | SAN PEDRO | CA |
| 2017-05-15 | 424-390-7XXX | 7000–7999 | Assigned | ONVOY, LLC - CA | 649C | REDONDO | CA |
| 2017-05-12 | 424-388-2XXX | 2000–2999 | Assigned | ONVOY, LLC - CA | 649C | MALIBU | CA |
| 2017-05-11 | 424-402-5XXX | 5000–5999 | Assigned | ONVOY, LLC - CA | 649C | W ANGELES | CA |
| 2017-05-11 | 424-433-6XXX | 6000–6999 | Assigned | ONVOY, LLC - CA | 649C | SNMN SNMN | CA |
| 2017-05-11 | 424-537-4XXX | 4000–4999 | Assigned | ONVOY, LLC - CA | 649C | SNMN MRVS | CA |
| 2017-05-03 | 424-399-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | TORRANCE | CA |
| 2017-05-03 | 424-399-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | TORRANCE | CA |
| 2017-04-12 | 424-433-8XXX | 8000–8999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | SNMN SNMN | CA |
| 2017-04-10 | 424-537-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SNMN MRVS | CA |
| 2017-04-10 | 424-537-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SNMN MRVS | CA |
| 2017-03-30 | 424-452-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | REDONDO | CA |
| 2017-03-30 | 424-452-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | REDONDO | CA |
| 2017-03-24 | 424-388-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | MALIBU | CA |
| 2017-03-24 | 424-423-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | EL SEGUNDO | CA |
| 2017-03-24 | 424-537-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | SNMN MRVS | CA |
| 2017-03-22 | 424-399-1XXX | 1000–1999 | Assigned | INTEGRATED PATH COMMUNICATIONS, LLC - CA | 707H | TORRANCE | CA |
| 2017-03-22 | 424-402-4XXX | 4000–4999 | Assigned | INTEGRATED PATH COMMUNICATIONS, LLC - CA | 707H | W ANGELES | CA |
| 2017-03-22 | 424-414-4XXX | 4000–4999 | Assigned | INTEGRATED PATH COMMUNICATIONS, LLC - CA | 707H | INGLEWOOD | CA |
| 2017-03-22 | 424-423-1XXX | 1000–1999 | Assigned | INTEGRATED PATH COMMUNICATIONS, LLC - CA | 707H | EL SEGUNDO | CA |
| 2017-03-20 | 424-528-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7139 | CMTN GRDN | CA |
| 2017-03-14 | 424-402-3XXX | 3000–3999 | Assigned | TELNYX LLC | 073H | W ANGELES | CA |
| 2017-03-14 | 424-512-0XXX | 0000–0999 | Assigned | TELNYX LLC | 073H | BEVERLYHLS | CA |
| 2017-03-09 | 424-390-8XXX | 8000–8999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | REDONDO | CA |
| 2017-02-24 | 424-512-9XXX | 9000–9999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | BEVERLYHLS | CA |
| 2017-02-21 | 424-501-0XXX | 0000–0999 | Assigned | ONVOY, LLC - CA | 649C | CULVERCITY | CA |
| 2017-02-21 | 424-501-1XXX | 1000–1999 | Assigned | ONVOY, LLC - CA | 649C | CULVERCITY | CA |
| 2017-02-21 | 424-512-5XXX | 5000–5999 | Assigned | PAETEC ITEL, LLC | 829J | BEVERLYHLS | CA |
| 2017-02-21 | 424-512-6XXX | 6000–6999 | Assigned | PAETEC ITEL, LLC | 829J | BEVERLYHLS | CA |
| 2017-02-17 | 424-390-5XXX | 5000–5999 | Assigned | ONVOY, LLC - CA | 649C | REDONDO | CA |
| 2017-02-16 | 424-318-2XXX | 2000–2999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | TORRANCE | CA |
| 2017-02-16 | 424-551-5XXX | 5000–5999 | Assigned | ONVOY, LLC - CA | 649C | CMTN GRDN | CA |
| 2017-02-15 | 424-402-1XXX | 1000–1999 | Assigned | ONVOY, LLC - CA | 649C | W ANGELES | CA |
| 2017-02-15 | 424-414-0XXX | 0000–0999 | Assigned | ONVOY, LLC - CA | 649C | INGLEWOOD | CA |
| 2017-02-14 | 424-377-4XXX | 4000–4999 | Assigned | ONVOY, LLC - CA | 649C | AVALON | CA |
| 2017-02-14 | 424-377-5XXX | 5000–5999 | Assigned | ONVOY, LLC - CA | 649C | AVALON | CA |
| 2017-02-14 | 424-377-6XXX | 6000–6999 | Assigned | ONVOY, LLC - CA | 649C | AVALON | CA |
| 2017-02-14 | 424-423-0XXX | 0000–0999 | Assigned | ONVOY, LLC - CA | 649C | EL SEGUNDO | CA |
| 2017-02-01 | 424-538-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | SNMN SNMN | CA |
| 2017-01-31 | 424-399-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | TORRANCE | CA |
| 2017-01-24 | 424-538-2XXX | 2000–2999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7139 | SNMN SNMN | CA |
| 2017-01-24 | 424-538-3XXX | 3000–3999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7139 | SNMN SNMN | CA |
| 2017-01-17 | 424-533-2XXX | 2000–2999 | Assigned | METROPCS NETWORKS, LLC | 899D | SAN PEDRO | CA |
| 2017-01-11 | 424-537-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SNMN MRVS | 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.