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 |
|---|---|---|---|---|---|---|---|
| 2009-11-23 | 817-576-2XXX | 2000–2999 | Assigned | AT&T ENTERPRISES, LLC | 516C | NRICHLDHLS | TX |
| 2009-11-19 | 817-823-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | ARLINGTON | TX |
| 2009-11-17 | 817-908-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | ARLINGTON | TX |
| 2009-11-17 | 817-908-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | ARLINGTON | TX |
| 2009-11-17 | 817-908-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | ARLINGTON | TX |
| 2009-11-17 | 817-908-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | ARLINGTON | TX |
| 2009-11-09 | 817-541-4XXX | 4000–4999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | ROANOKE | TX |
| 2009-11-04 | 817-900-0XXX | 0000–0999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | FORT WORTH | TX |
| 2009-11-03 | 817-538-9XXX | 9000–9999 | Assigned | AT&T ENTERPRISES, LLC | 516C | ARLINGTON | TX |
| 2009-11-02 | 817-374-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | WEATHERFD | TX |
| 2009-11-02 | 817-757-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | WEATHERFD | TX |
| 2009-10-30 | 817-751-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | ARLINGTON | TX |
| 2009-10-23 | 817-901-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | WEATHERFD | TX |
| 2009-10-21 | 817-908-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | ARLINGTON | TX |
| 2009-10-21 | 817-908-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | ARLINGTON | TX |
| 2009-10-21 | 817-908-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | ARLINGTON | TX |
| 2009-10-21 | 817-908-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | ARLINGTON | TX |
| 2009-10-21 | 817-908-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | ARLINGTON | TX |
| 2009-10-15 | 817-527-2XXX | 2000–2999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | GRAPEVINE | TX |
| 2009-10-13 | 817-751-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | ARLINGTON | TX |
| 2009-10-13 | 817-751-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | ARLINGTON | TX |
| 2009-09-14 | 817-583-7XXX | 7000–7999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | ARLINGTON | TX |
| 2009-09-10 | 817-751-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | ARLINGTON | TX |
| 2009-09-10 | 817-751-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | ARLINGTON | TX |
| 2009-09-03 | 817-550-6XXX | 6000–6999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | WEATHERFD | TX |
| 2009-08-31 | 817-760-4XXX | 4000–4999 | Assigned | PAETEC ITEL, LLC | 829J | CLEBURNE | TX |
| 2009-08-18 | 817-500-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | NRICHLDHLS | TX |
| 2009-08-17 | 817-583-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | ARLINGTON | TX |
| 2009-08-17 | 817-583-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | ARLINGTON | TX |
| 2009-08-14 | 817-583-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | ARLINGTON | TX |
| 2009-08-14 | 817-583-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | ARLINGTON | TX |
| 2009-08-14 | 817-583-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | ARLINGTON | TX |
| 2009-08-14 | 817-583-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | ARLINGTON | TX |
| 2009-08-14 | 817-629-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | WEATHERFD | TX |
| 2009-08-11 | 817-435-5XXX | 5000–5999 | Assigned | PAETEC ITEL, LLC | 829J | MANSFIELD | TX |
| 2009-08-11 | 817-440-7XXX | 7000–7999 | Assigned | ONVOY, LLC - TX | 903C | ATLAS | TX |
| 2009-08-11 | 817-476-5XXX | 5000–5999 | Assigned | PAETEC ITEL, LLC | 829J | KENNEDALE | TX |
| 2009-08-11 | 817-751-7XXX | 7000–7999 | Assigned | ONVOY, LLC - TX | 903C | ARLINGTON | TX |
| 2009-08-11 | 817-761-7XXX | 7000–7999 | Assigned | ONVOY, LLC - TX | 903C | ALVARADO | TX |
| 2009-08-07 | 817-381-7XXX | 7000–7999 | Assigned | ONVOY, LLC - TX | 903C | RENO | TX |
| 2009-08-07 | 817-405-7XXX | 7000–7999 | Assigned | ONVOY, LLC - TX | 903C | MANSFIELD | TX |
| 2009-08-07 | 817-438-7XXX | 7000–7999 | Assigned | ONVOY, LLC - TX | 903C | EULESS | TX |
| 2009-08-07 | 817-458-9XXX | 9000–9999 | Assigned | ONVOY, LLC - TX | 903C | WEATHERFD | TX |
| 2009-08-07 | 817-541-7XXX | 7000–7999 | Assigned | ONVOY, LLC - TX | 903C | ROANOKE | TX |
| 2009-08-07 | 817-752-7XXX | 7000–7999 | Assigned | ONVOY, LLC - TX | 903C | AZLE | TX |
| 2009-08-07 | 817-755-7XXX | 7000–7999 | Assigned | ONVOY, LLC - TX | 903C | SPRINGTOWN | TX |
| 2009-08-07 | 817-760-7XXX | 7000–7999 | Assigned | ONVOY, LLC - TX | 903C | CLEBURNE | TX |
| 2009-08-07 | 817-839-7XXX | 7000–7999 | Assigned | ONVOY, LLC - TX | 903C | KENNEDALE | TX |
| 2009-08-07 | 817-880-7XXX | 7000–7999 | Assigned | ONVOY, LLC - TX | 903C | GLENDALE | TX |
| 2009-08-07 | 817-898-7XXX | 7000–7999 | Assigned | ONVOY, LLC - TX | 903C | KELLER | 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.