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
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2018-09-28 | 817-662-9XXX | 9000–9999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | EULESS | TX |
| 2016-09-23 | 817-786-7XXX | 7000–7999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | EULESS | TX |
| 2016-04-21 | 817-722-6XXX | 6000–6999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | GRAPEVINE | TX |
| 2016-02-01 | 817-765-2XXX | 2000–2999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | KENNEDALE | TX |
| 2015-10-21 | 817-952-7XXX | 7000–7999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | EULESS | TX |
| 2015-04-22 | 817-786-8XXX | 8000–8999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | EULESS | TX |
| 2014-10-21 | 817-527-7XXX | 7000–7999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | GRAPEVINE | TX |
| 2012-01-26 | 817-617-3XXX | 3000–3999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | ARLINGTON | TX |
| 2012-01-13 | 817-617-2XXX | 2000–2999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | ARLINGTON | TX |
| 2011-05-23 | 817-398-4XXX | 4000–4999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | NRICHLDHLS | TX |
| 2011-05-23 | 817-422-9XXX | 9000–9999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | ARLINGTON | TX |
| 2011-05-23 | 817-435-6XXX | 6000–6999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | MANSFIELD | TX |
| 2011-05-23 | 817-476-6XXX | 6000–6999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | KENNEDALE | TX |
| 2011-05-23 | 817-527-6XXX | 6000–6999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | GRAPEVINE | TX |
| 2011-05-23 | 817-554-2XXX | 2000–2999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | EULESS | TX |
| 2011-05-23 | 817-687-7XXX | 7000–7999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | GLENDALE | TX |
| 2008-07-30 | 817-962-0XXX | 0000–0999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | ARLINGTON | TX |
| 2007-05-29 | 817-200-6XXX | 6000–6999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | ARLINGTON | TX |
| 2006-08-17 | 817-653-4XXX | 4000–4999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | GLENDALE | 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.