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 972
New assignments by month
Sep 2026
Aug 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2021-12-13 | 972-327-2XXX | 2000–2999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | TERRELL | TX |
| 2018-06-15 | 972-736-0XXX | 0000–0999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | PRINCETON | TX |
| 2016-08-16 | 972-441-9XXX | 9000–9999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | WILMER | TX |
| 2014-12-15 | 972-373-4XXX | 4000–4999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | DALLAS | TX |
| 2014-11-10 | 972-457-0XXX | 0000–0999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | IRVING | TX |
| 2014-02-12 | 972-685-0XXX | 0000–0999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | DALLAS | TX |
| 2014-02-12 | 972-685-2XXX | 2000–2999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | DALLAS | TX |
| 2014-02-12 | 972-685-3XXX | 3000–3999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | DALLAS | TX |
| 2014-02-12 | 972-685-4XXX | 4000–4999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | DALLAS | TX |
| 2014-02-12 | 972-685-5XXX | 5000–5999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | DALLAS | TX |
| 2014-02-12 | 972-685-6XXX | 6000–6999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | DALLAS | TX |
| 2014-02-12 | 972-685-7XXX | 7000–7999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | DALLAS | TX |
| 2014-02-12 | 972-685-9XXX | 9000–9999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | DALLAS | TX |
| 2012-12-13 | 972-598-0XXX | 0000–0999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | DALLAS | TX |
| 2012-12-13 | 972-598-1XXX | 1000–1999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | DALLAS | TX |
| 2012-07-09 | 972-784-9XXX | 9000–9999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | FARMERSVL | TX |
| 2012-02-07 | 972-810-0XXX | 0000–0999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | CARROLLTON | TX |
| 2012-02-06 | 972-707-0XXX | 0000–0999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | DALLAS | TX |
| 2012-02-06 | 972-707-7XXX | 7000–7999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | DALLAS | TX |
| 2012-02-06 | 972-707-8XXX | 8000–8999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | DALLAS | TX |
| 2012-02-06 | 972-707-9XXX | 9000–9999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | DALLAS | TX |
| 2012-01-26 | 972-982-0XXX | 0000–0999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | DALLAS | TX |
| 2012-01-26 | 972-982-2XXX | 2000–2999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | DALLAS | TX |
| 2011-05-23 | 972-787-5XXX | 5000–5999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | PROSPER | TX |
| 2011-05-23 | 972-905-5XXX | 5000–5999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | PLANO | TX |
| 2011-05-11 | 972-807-2XXX | 2000–2999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | DALLAS | TX |
| 2011-05-11 | 972-807-6XXX | 6000–6999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | DALLAS | TX |
| 2011-05-11 | 972-807-9XXX | 9000–9999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | DALLAS | TX |
| 2011-05-11 | 972-925-0XXX | 0000–0999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | DALLAS | TX |
| 2011-05-11 | 972-925-9XXX | 9000–9999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | DALLAS | TX |
| 2011-03-09 | 972-537-5XXX | 5000–5999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | LEWISVILLE | TX |
| 2009-11-23 | 972-212-4XXX | 4000–4999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | PLANO | TX |
| 2009-08-05 | 972-695-6XXX | 6000–6999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | CARROLLTON | TX |
| 2009-02-10 | 972-290-0XXX | 0000–0999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | DALLAS | TX |
| 2008-03-10 | 972-600-8XXX | 8000–8999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | IRVING | TX |
| 2008-03-10 | 972-600-9XXX | 9000–9999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | IRVING | TX |
| 2007-10-03 | 972-887-5XXX | 5000–5999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | IRVING | TX |
| 2007-04-02 | 972-346-7XXX | 7000–7999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | PROSPER | TX |
| 2007-02-09 | 972-887-3XXX | 3000–3999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | IRVING | TX |
| 2006-08-17 | 972-217-3XXX | 3000–3999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | DE SOTO | TX |
| 2006-08-17 | 972-294-5XXX | 5000–5999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | FRISCO | TX |
| 2002-08-22 | 972-514-1XXX | 1000–1999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | IRVING | TX |
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.