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 817
New assignments by month
Sep 2026
Aug 2026
Jul 2026
Jun 2026
May 2026
Apr 2026
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Dec 2025
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2020-09-01 | 817-405-1XXX | 1000–1999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | MANSFIELD | TX |
| 2018-09-05 | 817-393-7XXX | 7000–7999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | NRICHLDHLS | TX |
| 2017-10-10 | 817-353-2XXX | 2000–2999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | FORT WORTH | TX |
| 2017-09-26 | 817-489-5XXX | 5000–5999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | FORT WORTH | TX |
| 2017-06-26 | 817-395-1XXX | 1000–1999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | GLENDALE | TX |
| 2017-06-15 | 817-910-8XXX | 8000–8999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | ACTON | TX |
| 2017-06-06 | 817-720-3XXX | 3000–3999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | FORT WORTH | TX |
| 2017-05-23 | 817-720-5XXX | 5000–5999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | FORT WORTH | TX |
| 2017-05-05 | 817-720-7XXX | 7000–7999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | FORT WORTH | TX |
| 2017-04-17 | 817-720-6XXX | 6000–6999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | FORT WORTH | TX |
| 2016-07-15 | 817-393-3XXX | 3000–3999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | NRICHLDHLS | TX |
| 2015-05-08 | 817-849-9XXX | 9000–9999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | NRICHLDHLS | TX |
| 2014-12-02 | 817-616-5XXX | 5000–5999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | ATLAS | TX |
| 2014-02-25 | 817-516-2XXX | 2000–2999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | KENNEDALE | TX |
| 2014-02-17 | 817-849-5XXX | 5000–5999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | NRICHLDHLS | TX |
| 2013-09-06 | 817-952-3XXX | 3000–3999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | EULESS | TX |
| 2013-07-18 | 817-439-9XXX | 9000–9999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | FORT WORTH | TX |
| 2013-07-18 | 817-862-9XXX | 9000–9999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | FORT WORTH | TX |
| 2013-06-12 | 817-708-2XXX | 2000–2999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | FORT WORTH | TX |
| 2013-05-23 | 817-420-6XXX | 6000–6999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | FORT WORTH | TX |
| 2013-05-17 | 817-887-9XXX | 9000–9999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | FORT WORTH | TX |
| 2013-05-06 | 817-759-9XXX | 9000–9999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | FORT WORTH | TX |
| 2013-05-06 | 817-849-2XXX | 2000–2999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | NRICHLDHLS | TX |
| 2013-04-16 | 817-752-2XXX | 2000–2999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | AZLE | TX |
| 2013-03-19 | 817-367-9XXX | 9000–9999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | FORT WORTH | TX |
| 2013-02-19 | 817-882-6XXX | 6000–6999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | FORT WORTH | TX |
| 2012-11-20 | 817-984-1XXX | 1000–1999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | FORT WORTH | TX |
| 2012-09-10 | 817-945-2XXX | 2000–2999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | FORT WORTH | TX |
| 2012-08-15 | 817-225-4XXX | 4000–4999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | MANSFIELD | TX |
| 2012-08-03 | 817-479-4XXX | 4000–4999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | NRICHLDHLS | TX |
| 2012-07-26 | 817-945-1XXX | 1000–1999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | FORT WORTH | TX |
| 2011-09-28 | 817-349-9XXX | 9000–9999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | FORT WORTH | TX |
| 2010-07-26 | 817-666-1XXX | 1000–1999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | CLEBURNE | TX |
| 2010-07-01 | 817-888-3XXX | 3000–3999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | GLENDALE | TX |
| 2010-06-18 | 817-585-1XXX | 1000–1999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | FORT WORTH | TX |
| 2009-09-03 | 817-550-6XXX | 6000–6999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | WEATHERFD | TX |
| 2008-08-13 | 817-221-6XXX | 6000–6999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | RENO | TX |
| 2008-05-08 | 817-510-6XXX | 6000–6999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | EULESS | TX |
| 2008-04-25 | 817-744-8XXX | 8000–8999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | FORT WORTH | TX |
| 2008-02-25 | 817-341-6XXX | 6000–6999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | WEATHERFD | TX |
| 2008-02-21 | 817-774-2XXX | 2000–2999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | CLEBURNE | TX |
| 2008-02-06 | 817-744-7XXX | 7000–7999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | FORT WORTH | TX |
| 2007-11-27 | 817-479-8XXX | 8000–8999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | NRICHLDHLS | TX |
| 2007-09-06 | 817-420-9XXX | 9000–9999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | FORT WORTH | TX |
| 2007-06-28 | 817-406-4XXX | 4000–4999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | AZLE | TX |
| 2007-06-14 | 817-386-9XXX | 9000–9999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | FORT WORTH | TX |
| 2007-06-07 | 817-225-6XXX | 6000–6999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | MANSFIELD | TX |
| 2007-05-03 | 817-386-0XXX | 0000–0999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | FORT WORTH | TX |
| 2007-03-16 | 817-479-7XXX | 7000–7999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | NRICHLDHLS | TX |
| 2007-02-01 | 817-386-7XXX | 7000–7999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | FORT WORTH | 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.