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 817
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 |
|---|---|---|---|---|---|---|---|
| 2025-07-28 | 817-450-7XXX | 7000–7999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7148 | FORT WORTH | TX |
| 2021-06-17 | 817-550-8XXX | 8000–8999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7148 | WEATHERFD | TX |
| 2020-11-16 | 817-904-1XXX | 1000–1999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7148 | ACTON | TX |
| 2019-09-11 | 817-580-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7148 | ATLAS | TX |
| 2019-07-02 | 817-386-1XXX | 1000–1999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7148 | FORT WORTH | TX |
| 2019-06-24 | 817-502-0XXX | 0000–0999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7148 | FORT WORTH | TX |
| 2019-06-06 | 817-663-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7148 | NRICHLDHLS | TX |
| 2018-12-31 | 817-920-2XXX | 2000–2999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7148 | FORT WORTH | TX |
| 2018-12-31 | 817-920-3XXX | 3000–3999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7148 | FORT WORTH | TX |
| 2018-12-31 | 817-920-4XXX | 4000–4999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7148 | FORT WORTH | TX |
| 2018-05-01 | 817-857-0XXX | 0000–0999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7148 | EULESS | TX |
| 2016-01-26 | 817-779-5XXX | 5000–5999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7148 | MANSFIELD | TX |
| 2016-01-26 | 817-799-4XXX | 4000–4999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7148 | EULESS | TX |
| 2014-07-10 | 817-799-5XXX | 5000–5999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7148 | EULESS | TX |
| 2013-12-10 | 817-806-9XXX | 9000–9999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7148 | FORT WORTH | TX |
| 2013-07-18 | 817-569-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7148 | FORT WORTH | TX |
| 2013-05-23 | 817-767-7XXX | 7000–7999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7148 | ROANOKE | TX |
| 2013-04-25 | 817-677-7XXX | 7000–7999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7148 | RENO | TX |
| 2013-03-26 | 817-837-5XXX | 5000–5999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7148 | ROANOKE | TX |
| 2013-03-22 | 817-752-8XXX | 8000–8999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7148 | AZLE | TX |
| 2012-12-10 | 817-752-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7148 | AZLE | TX |
| 2012-12-10 | 817-898-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7148 | KELLER | TX |
| 2012-10-19 | 817-840-4XXX | 4000–4999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7148 | FORT WORTH | TX |
| 2012-07-30 | 817-541-8XXX | 8000–8999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7148 | ROANOKE | TX |
| 2012-01-12 | 817-799-1XXX | 1000–1999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7148 | EULESS | TX |
| 2011-01-21 | 817-567-7XXX | 7000–7999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7148 | ROANOKE | TX |
| 2010-10-26 | 817-508-5XXX | 5000–5999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7148 | EULESS | TX |
| 2010-01-12 | 817-402-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7148 | ALVARADO | TX |
| 2009-07-08 | 817-458-7XXX | 7000–7999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7148 | WEATHERFD | TX |
| 2009-04-27 | 817-526-7XXX | 7000–7999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7148 | CLEBURNE | TX |
| 2004-01-26 | 817-778-5XXX | 5000–5999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7148 | GRAPEVINE | TX |
| 2004-01-26 | 817-778-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7148 | GRAPEVINE | TX |
| 2003-11-03 | 817-778-1XXX | 1000–1999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7148 | GRAPEVINE | TX |
| 2003-11-03 | 817-778-2XXX | 2000–2999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7148 | GRAPEVINE | TX |
| 2003-11-03 | 817-778-3XXX | 3000–3999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7148 | GRAPEVINE | TX |
| 2003-10-06 | 817-305-2XXX | 2000–2999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7148 | GRAPEVINE | 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.