NumberResearchRecent thousands-block assignments
0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026
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 956
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 |
|---|---|---|---|---|---|---|---|
| 2023-06-20 | 956-327-1XXX | 1000–1999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | DOLORES | TX |
| 2020-09-04 | 956-591-0XXX | 0000–0999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | MISSION | TX |
| 2020-09-03 | 956-558-1XXX | 1000–1999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | MCALLEN | TX |
| 2020-05-14 | 956-223-1XXX | 1000–1999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | PHARR | TX |
| 2020-04-01 | 956-461-1XXX | 1000–1999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | DONNA | TX |
| 2018-12-07 | 956-766-6XXX | 6000–6999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | MISSION | TX |
| 2018-09-28 | 956-370-6XXX | 6000–6999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | RIGRANDECY | TX |
| 2018-07-02 | 956-903-0XXX | 0000–0999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | MERCEDES | TX |
| 2018-01-31 | 956-348-4XXX | 4000–4999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | EDINBURG | TX |
| 2018-01-31 | 956-348-5XXX | 5000–5999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | EDINBURG | TX |
| 2018-01-31 | 956-626-3XXX | 3000–3999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | SAN BENITO | TX |
| 2018-01-31 | 956-666-0XXX | 0000–0999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | PHARR | TX |
| 2018-01-31 | 956-731-5XXX | 5000–5999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | MCALLEN | TX |
| 2018-01-31 | 956-731-6XXX | 6000–6999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | MCALLEN | TX |
| 2018-01-31 | 956-766-2XXX | 2000–2999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | MISSION | TX |
| 2017-11-21 | 956-731-4XXX | 4000–4999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | MCALLEN | TX |
| 2017-10-25 | 956-405-3XXX | 3000–3999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | WESLACO | TX |
| 2017-09-29 | 956-368-5XXX | 5000–5999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | HARLINGEN | TX |
| 2017-09-29 | 956-666-9XXX | 9000–9999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | PHARR | TX |
| 2017-08-31 | 956-348-2XXX | 2000–2999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | EDINBURG | TX |
| 2017-08-31 | 956-766-7XXX | 7000–7999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | MISSION | TX |
| 2017-08-11 | 956-420-1XXX | 1000–1999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | DONNA | TX |
| 2017-08-09 | 956-426-9XXX | 9000–9999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | PORTISABEL | TX |
| 2017-07-28 | 956-540-7XXX | 7000–7999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | MCALLEN | TX |
| 2017-07-03 | 956-255-4XXX | 4000–4999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | EDCOUCH | TX |
| 2016-07-28 | 956-516-4XXX | 4000–4999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | LAREDO | TX |
| 2016-07-28 | 956-516-5XXX | 5000–5999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | LAREDO | TX |
| 2016-06-23 | 956-603-2XXX | 2000–2999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | EDINBURG | TX |
| 2016-03-29 | 956-667-5XXX | 5000–5999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | BROWNSVL | TX |
| 2016-03-29 | 956-704-5XXX | 5000–5999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | LAREDO | TX |
| 2016-03-10 | 956-291-7XXX | 7000–7999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | HARLINGEN | TX |
| 2016-03-10 | 956-715-8XXX | 8000–8999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | PHARR | TX |
| 2016-02-01 | 956-513-8XXX | 8000–8999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | EDINBURG | TX |
| 2016-02-01 | 956-600-8XXX | 8000–8999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | MISSION | TX |
| 2016-02-01 | 956-803-1XXX | 1000–1999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | MCALLEN | TX |
| 2015-11-23 | 956-772-7XXX | 7000–7999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | PORTISABEL | TX |
| 2015-10-21 | 956-620-3XXX | 3000–3999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | BROWNSVL | TX |
| 2015-10-05 | 956-997-0XXX | 0000–0999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | MISSION | TX |
| 2015-09-22 | 956-441-0XXX | 0000–0999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | LAREDO | TX |
| 2015-09-22 | 956-441-1XXX | 1000–1999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | LAREDO | TX |
| 2015-08-28 | 956-803-0XXX | 0000–0999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | MCALLEN | TX |
| 2015-08-20 | 956-496-2XXX | 2000–2999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | HARLINGEN | TX |
| 2015-07-28 | 956-609-8XXX | 8000–8999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | EDINBURG | TX |
| 2015-07-21 | 956-615-0XXX | 0000–0999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | LAREDO | TX |
| 2015-07-21 | 956-615-1XXX | 1000–1999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | LAREDO | TX |
| 2015-06-19 | 956-641-4XXX | 4000–4999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | BROWNSVL | TX |
| 2015-04-23 | 956-322-8XXX | 8000–8999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | MCALLEN | TX |
| 2015-02-19 | 956-230-8XXX | 8000–8999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | HARLINGEN | TX |
| 2015-02-19 | 956-601-2XXX | 2000–2999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | PHARR | TX |
| 2015-02-19 | 956-608-4XXX | 4000–4999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | LAREDO | TX |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.