NumberResearchRecent thousands-block assignments
0 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, all time — NPA 424
New assignments by month
Sep 2026
Aug 2026
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Jun 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2022-10-24 | 424-475-4XXX | 4000–4999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | TORRANCE | CA |
| 2019-05-08 | 424-434-0XXX | 0000–0999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | CULVERCITY | CA |
| 2019-05-08 | 424-434-1XXX | 1000–1999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | CULVERCITY | CA |
| 2019-05-08 | 424-434-2XXX | 2000–2999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | CULVERCITY | CA |
| 2019-05-08 | 424-434-3XXX | 3000–3999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | CULVERCITY | CA |
| 2018-10-26 | 424-406-8XXX | 8000–8999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | CMTN CMTN | CA |
| 2018-10-26 | 424-406-9XXX | 9000–9999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | CMTN CMTN | CA |
| 2018-10-01 | 424-541-9XXX | 9000–9999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | INGLEWOOD | CA |
| 2018-08-23 | 424-406-2XXX | 2000–2999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | CMTN CMTN | CA |
| 2018-04-03 | 424-409-0XXX | 0000–0999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | REDONDO | CA |
| 2017-11-15 | 424-541-7XXX | 7000–7999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | INGLEWOOD | CA |
| 2017-09-25 | 424-267-5XXX | 5000–5999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | SAN PEDRO | CA |
| 2017-08-09 | 424-403-4XXX | 4000–4999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | CMTN CMTN | CA |
| 2017-08-09 | 424-528-2XXX | 2000–2999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | CMTN GRDN | CA |
| 2017-04-12 | 424-433-8XXX | 8000–8999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | SNMN SNMN | 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 |
| 2017-02-16 | 424-318-2XXX | 2000–2999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | TORRANCE | CA |
| 2016-09-23 | 424-402-8XXX | 8000–8999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | W ANGELES | CA |
| 2016-09-22 | 424-390-4XXX | 4000–4999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | REDONDO | CA |
| 2016-08-26 | 424-229-5XXX | 5000–5999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | SNMN SNMN | CA |
| 2016-08-26 | 424-456-6XXX | 6000–6999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | HAWTHORNE | CA |
| 2016-06-23 | 424-313-9XXX | 9000–9999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | BEVERLYHLS | CA |
| 2016-06-20 | 424-317-0XXX | 0000–0999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | W ANGELES | CA |
| 2016-06-20 | 424-452-6XXX | 6000–6999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | REDONDO | CA |
| 2016-06-14 | 424-305-4XXX | 4000–4999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | LOMITA | CA |
| 2016-06-14 | 424-340-9XXX | 9000–9999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | CMTN GRDN | CA |
| 2016-05-20 | 424-309-9XXX | 9000–9999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | INGLEWOOD | CA |
| 2016-05-16 | 424-526-1XXX | 1000–1999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | SNMN MRVS | CA |
| 2016-05-16 | 424-581-4XXX | 4000–4999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | SNMN SNMN | CA |
| 2016-04-21 | 424-304-2XXX | 2000–2999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | REDONDO | CA |
| 2016-04-11 | 424-536-4XXX | 4000–4999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | SAN PEDRO | CA |
| 2016-03-29 | 424-313-8XXX | 8000–8999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | BEVERLYHLS | CA |
| 2016-01-29 | 424-535-3XXX | 3000–3999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | W ANGELES | CA |
| 2016-01-29 | 424-581-6XXX | 6000–6999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | SNMN SNMN | CA |
| 2016-01-19 | 424-344-2XXX | 2000–2999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | CMTN GRDN | CA |
| 2016-01-19 | 424-523-3XXX | 3000–3999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | CULVERCITY | CA |
| 2015-12-21 | 424-312-1XXX | 1000–1999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | INGLEWOOD | CA |
| 2015-10-21 | 424-443-5XXX | 5000–5999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | SNMN MRVS | CA |
| 2015-10-09 | 424-303-7XXX | 7000–7999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | BEVERLYHLS | CA |
| 2015-09-29 | 424-340-2XXX | 2000–2999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | CMTN GRDN | CA |
| 2015-09-29 | 424-350-7XXX | 7000–7999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | REDONDO | CA |
| 2015-09-29 | 424-369-5XXX | 5000–5999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | W ANGELES | CA |
| 2015-08-24 | 424-358-1XXX | 1000–1999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | TORRANCE | CA |
| 2015-08-04 | 424-330-0XXX | 0000–0999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | SNMN SNMN | CA |
| 2015-07-29 | 424-532-2XXX | 2000–2999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | CULVERCITY | CA |
| 2015-07-28 | 424-372-3XXX | 3000–3999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | W ANGELES | CA |
| 2015-07-28 | 424-374-4XXX | 4000–4999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | HAWTHORNE | CA |
| 2015-07-28 | 424-536-3XXX | 3000–3999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | SAN PEDRO | CA |
| 2015-07-16 | 424-527-0XXX | 0000–0999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | BEVERLYHLS | 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.