NumberResearchRecent thousands-block assignments
1 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 972
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 |
|---|---|---|---|---|---|---|---|
| 2016-09-02 | 972-817-9XXX | 9000–9999 | Assigned | SOUTHWESTERN BELL TELEPHONE COMPANY - TX | 7726 | IRVING | TX |
| 2016-08-16 | 972-441-9XXX | 9000–9999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | WILMER | TX |
| 2016-07-21 | 972-817-0XXX | 0000–0999 | Assigned | SOUTHWESTERN BELL TELEPHONE COMPANY - TX | 7726 | IRVING | TX |
| 2016-07-21 | 972-817-1XXX | 1000–1999 | Assigned | SOUTHWESTERN BELL TELEPHONE COMPANY - TX | 7726 | IRVING | TX |
| 2016-07-15 | 972-469-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | FRISCO | TX |
| 2016-07-15 | 972-469-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | FRISCO | TX |
| 2016-07-12 | 972-469-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | FRISCO | TX |
| 2016-07-12 | 972-469-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | FRISCO | TX |
| 2016-07-12 | 972-469-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | FRISCO | TX |
| 2016-07-12 | 972-469-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | FRISCO | TX |
| 2016-07-12 | 972-469-7XXX | 7000–7999 | Assigned | ONVOY, LLC - TX | 903C | FRISCO | TX |
| 2016-07-12 | 972-469-8XXX | 8000–8999 | Assigned | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | FRISCO | TX |
| 2016-06-24 | 972-833-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - TX | 004F | FERRIS | TX |
| 2016-06-22 | 972-299-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - TX | 004F | CEDAR HILL | TX |
| 2016-05-02 | 972-842-6XXX | 6000–6999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | FERRIS | TX |
| 2016-03-23 | 972-456-9XXX | 9000–9999 | Assigned | ONVOY, LLC - TX | 903C | DLFTWTARPT | TX |
| 2016-03-23 | 972-947-2XXX | 2000–2999 | Assigned | ONVOY, LLC - TX | 903C | DLFTWTARPT | TX |
| 2016-03-16 | 972-449-9XXX | 9000–9999 | Assigned | ONVOY, LLC - TX | 903C | PALMER | TX |
| 2016-03-16 | 972-845-9XXX | 9000–9999 | Assigned | ONVOY, LLC - TX | 903C | PALMER | TX |
| 2016-03-10 | 972-366-4XXX | 4000–4999 | Assigned | ONVOY, LLC - TX | 903C | VENUS | TX |
| 2016-03-10 | 972-366-7XXX | 7000–7999 | Assigned | ONVOY, LLC - TX | 903C | VENUS | TX |
| 2016-03-09 | 972-474-9XXX | 9000–9999 | Assigned | ONVOY, LLC - TX | 903C | COMBINE | TX |
| 2016-03-09 | 972-476-2XXX | 2000–2999 | Assigned | ONVOY, LLC - TX | 903C | COMBINE | TX |
| 2016-03-09 | 972-752-2XXX | 2000–2999 | Assigned | ONVOY, LLC - TX | 903C | BLUE RIDGE | TX |
| 2016-03-02 | 972-737-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | ALLEN | TX |
| 2016-02-19 | 972-597-9XXX | 9000–9999 | Assigned | ONVOY, LLC - TX | 903C | ITALY | TX |
| 2016-02-19 | 972-845-4XXX | 4000–4999 | Assigned | ONVOY, LLC - TX | 903C | PALMER | TX |
| 2016-02-19 | 972-845-8XXX | 8000–8999 | Assigned | ONVOY, LLC - TX | 903C | PALMER | TX |
| 2016-02-19 | 972-848-1XXX | 1000–1999 | Assigned | ONVOY, LLC - TX | 903C | WILMER | TX |
| 2016-02-19 | 972-848-4XXX | 4000–4999 | Assigned | ONVOY, LLC - TX | 903C | WILMER | TX |
| 2016-02-19 | 972-848-8XXX | 8000–8999 | Assigned | ONVOY, LLC - TX | 903C | WILMER | TX |
| 2016-02-19 | 972-848-9XXX | 9000–9999 | Assigned | ONVOY, LLC - TX | 903C | WILMER | TX |
| 2016-02-17 | 972-435-6XXX | 6000–6999 | Assigned | ONVOY, LLC - TX | 903C | MAYPEARL | TX |
| 2016-02-10 | 972-597-5XXX | 5000–5999 | Assigned | ONVOY, LLC - TX | 903C | ITALY | TX |
| 2016-02-10 | 972-597-8XXX | 8000–8999 | Assigned | ONVOY, LLC - TX | 903C | ITALY | TX |
| 2016-02-09 | 972-895-5XXX | 5000–5999 | Assigned | ONVOY, LLC - TX | 903C | BRISTOL | TX |
| 2016-02-09 | 972-895-6XXX | 6000–6999 | Assigned | ONVOY, LLC - TX | 903C | BRISTOL | TX |
| 2016-02-08 | 972-299-3XXX | 3000–3999 | Assigned | ONVOY, LLC - TX | 903C | CEDAR HILL | TX |
| 2016-02-08 | 972-460-8XXX | 8000–8999 | Assigned | ONVOY, LLC - TX | 903C | CEDAR HILL | TX |
| 2016-02-02 | 972-737-4XXX | 4000–4999 | Assigned | ONVOY, LLC - TX | 903C | ALLEN | TX |
| 2016-02-02 | 972-737-5XXX | 5000–5999 | Assigned | ONVOY, LLC - TX | 903C | ALLEN | TX |
| 2016-01-26 | 972-842-0XXX | 0000–0999 | Assigned | ONVOY, LLC - TX | 903C | FERRIS | TX |
| 2016-01-26 | 972-842-1XXX | 1000–1999 | Assigned | ONVOY, LLC - TX | 903C | FERRIS | TX |
| 2016-01-20 | 972-203-6XXX | 6000–6999 | Assigned | ONVOY, LLC - TX | 903C | DALLAS | TX |
| 2016-01-20 | 972-402-6XXX | 6000–6999 | Assigned | ONVOY, LLC - TX | 903C | DALLAS | TX |
| 2016-01-20 | 972-503-8XXX | 8000–8999 | Assigned | ONVOY, LLC - TX | 903C | DALLAS | TX |
| 2016-01-20 | 972-818-5XXX | 5000–5999 | Assigned | ONVOY, LLC - TX | 903C | DALLAS | TX |
| 2016-01-20 | 972-882-9XXX | 9000–9999 | Assigned | ONVOY, LLC - TX | 903C | DALLAS | TX |
| 2015-12-28 | 972-946-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | GRANDPRARI | TX |
| 2015-12-28 | 972-946-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | GRANDPRARI | 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.