NumberResearchRecent thousands-block assignments
3 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, last 30 days — NPA 817
New assignments by month
Sep 2026
Aug 2026
Jul 2026
Jun 2026
May 2026
Apr 2026
Mar 2026
Feb 2026
Jan 2026
Dec 2025
Nov 2025
Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2016-01-15 | 817-318-8XXX | 8000–8999 | Assigned | ONVOY, LLC - TX | 903C | EULESS | TX |
| 2016-01-13 | 817-492-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | GLENDALE | TX |
| 2016-01-08 | 817-784-7XXX | 7000–7999 | Assigned | ONVOY, LLC - TX | 903C | ARLINGTON | TX |
| 2015-12-30 | 817-774-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CLEBURNE | TX |
| 2015-12-22 | 817-809-9XXX | 9000–9999 | Assigned | ONVOY, LLC - TX | 903C | GRAPEVINE | TX |
| 2015-12-18 | 817-609-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | WEATHERFD | TX |
| 2015-12-18 | 817-618-7XXX | 7000–7999 | Assigned | ONVOY, LLC - TX | 903C | KENNEDALE | TX |
| 2015-12-10 | 817-968-5XXX | 5000–5999 | Assigned | ONVOY, LLC - TX | 903C | NRICHLDHLS | TX |
| 2015-12-10 | 817-968-7XXX | 7000–7999 | Assigned | ONVOY, LLC - TX | 903C | NRICHLDHLS | TX |
| 2015-12-09 | 817-345-5XXX | 5000–5999 | Assigned | IP HORIZON LLC | 515J | NRICHLDHLS | TX |
| 2015-12-09 | 817-649-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | ARLINGTON | TX |
| 2015-12-09 | 817-775-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | KENNEDALE | TX |
| 2015-12-08 | 817-285-2XXX | 2000–2999 | Assigned | IP HORIZON LLC | 515J | EULESS | TX |
| 2015-12-08 | 817-286-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | ATLAS | TX |
| 2015-10-21 | 817-952-7XXX | 7000–7999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | EULESS | TX |
| 2015-10-08 | 817-752-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - TX | 004F | AZLE | TX |
| 2015-09-23 | 817-508-3XXX | 3000–3999 | Assigned | AT&T ENTERPRISES, LLC | 516C | EULESS | TX |
| 2015-08-10 | 817-369-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - TX | 004F | NRICHLDHLS | TX |
| 2015-06-29 | 817-618-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - TX | 004F | KENNEDALE | TX |
| 2015-06-29 | 817-677-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - TX | 004F | RENO | TX |
| 2015-06-29 | 817-779-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - TX | 004F | MANSFIELD | TX |
| 2015-06-08 | 817-893-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | NRICHLDHLS | TX |
| 2015-05-08 | 817-849-9XXX | 9000–9999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | NRICHLDHLS | TX |
| 2015-04-24 | 817-482-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - TX | 004F | KELLER | TX |
| 2015-04-22 | 817-786-8XXX | 8000–8999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | EULESS | TX |
| 2015-04-02 | 817-969-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | KENNEDALE | TX |
| 2015-03-27 | 817-893-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | NRICHLDHLS | TX |
| 2015-03-27 | 817-918-0XXX | 0000–0999 | Assigned | METROPCS, INC. | 5562 | NRICHLDHLS | TX |
| 2015-03-27 | 817-918-5XXX | 5000–5999 | Assigned | METROPCS, INC. | 5562 | NRICHLDHLS | TX |
| 2015-03-16 | 817-508-4XXX | 4000–4999 | Assigned | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | EULESS | TX |
| 2015-03-06 | 817-286-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | ATLAS | TX |
| 2015-02-26 | 817-753-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | KELLER | TX |
| 2015-02-25 | 817-779-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | MANSFIELD | TX |
| 2015-02-11 | 817-873-7XXX | 7000–7999 | Assigned | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | GRAPEVINE | TX |
| 2015-01-07 | 817-873-4XXX | 4000–4999 | Assigned | FOREMOST TELECOMMUNICATIONS CORPORATION - TX | 319D | GRAPEVINE | TX |
| 2015-01-06 | 817-264-5XXX | 5000–5999 | Assigned | METROPCS, INC. | 5562 | ARLINGTON | TX |
| 2015-01-06 | 817-543-2XXX | 2000–2999 | Assigned | METROPCS, INC. | 5562 | ARLINGTON | TX |
| 2015-01-05 | 817-767-6XXX | 6000–6999 | Assigned | PAETEC ITEL, LLC | 829J | ROANOKE | TX |
| 2015-01-05 | 817-809-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - TX | 004F | GRAPEVINE | TX |
| 2015-01-05 | 817-809-7XXX | 7000–7999 | Assigned | BANDWIDTH.COM CLEC, LLC - TX | 004F | GRAPEVINE | TX |
| 2015-01-05 | 817-809-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - TX | 004F | GRAPEVINE | TX |
| 2014-12-12 | 817-347-0XXX | 0000–0999 | Assigned | METROPCS, INC. | 5562 | FORT WORTH | TX |
| 2014-12-12 | 817-413-8XXX | 8000–8999 | Assigned | METROPCS, INC. | 5562 | FORT WORTH | TX |
| 2014-12-12 | 817-535-9XXX | 9000–9999 | Assigned | METROPCS, INC. | 5562 | FORT WORTH | TX |
| 2014-12-12 | 817-569-0XXX | 0000–0999 | Assigned | METROPCS, INC. | 5562 | FORT WORTH | TX |
| 2014-12-12 | 817-989-0XXX | 0000–0999 | Assigned | METROPCS, INC. | 5562 | FORT WORTH | TX |
| 2014-12-10 | 817-258-5XXX | 5000–5999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | FORT WORTH | TX |
| 2014-12-10 | 817-918-2XXX | 2000–2999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | NRICHLDHLS | TX |
| 2014-12-09 | 817-492-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | GLENDALE | TX |
| 2014-12-09 | 817-492-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | 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.