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 |
|---|---|---|---|---|---|---|---|
| 2015-12-28 | 972-946-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | GRANDPRARI | TX |
| 2015-12-28 | 972-946-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | GRANDPRARI | TX |
| 2015-12-17 | 972-737-7XXX | 7000–7999 | Assigned | ONVOY, LLC - TX | 903C | ALLEN | TX |
| 2015-12-16 | 972-236-8XXX | 8000–8999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | CARROLLTON | TX |
| 2015-12-11 | 972-402-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | DALLAS | TX |
| 2015-12-10 | 972-236-4XXX | 4000–4999 | Assigned | ONVOY, LLC - TX | 903C | CARROLLTON | TX |
| 2015-12-10 | 972-236-5XXX | 5000–5999 | Assigned | ONVOY, LLC - TX | 903C | CARROLLTON | TX |
| 2015-12-08 | 972-236-3XXX | 3000–3999 | Assigned | IP HORIZON LLC | 515J | CARROLLTON | TX |
| 2015-11-30 | 972-551-4XXX | 4000–4999 | Assigned | ONVOY, LLC - TX | 903C | TERRELL | TX |
| 2015-11-13 | 972-202-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | PLANO | TX |
| 2015-10-19 | 972-453-1XXX | 1000–1999 | Assigned | PEERLESS NETWORK OF TEXAS, LLC - TX | 177F | DLFTWTARPT | TX |
| 2015-09-08 | 972-597-6XXX | 6000–6999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | ITALY | TX |
| 2015-08-10 | 972-878-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | ENNIS | TX |
| 2015-07-29 | 972-366-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - TX | 004F | VENUS | TX |
| 2015-07-17 | 972-210-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | TERRELL | TX |
| 2015-07-15 | 972-426-2XXX | 2000–2999 | Assigned | ONVOY, LLC - TX | 903C | DLFTWTARPT | TX |
| 2015-07-08 | 972-206-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | GRANDPRARI | TX |
| 2015-06-03 | 972-427-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - TX | 004F | CRANDALL | TX |
| 2015-06-02 | 972-737-1XXX | 1000–1999 | Assigned | ONVOY, LLC - TX | 903C | ALLEN | TX |
| 2015-06-02 | 972-737-9XXX | 9000–9999 | Assigned | ONVOY, LLC - TX | 903C | ALLEN | TX |
| 2015-04-30 | 972-576-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | RED OAK | TX |
| 2015-04-16 | 972-737-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | ALLEN | TX |
| 2015-04-13 | 972-737-0XXX | 0000–0999 | Assigned | ONVOY, LLC - TX | 903C | ALLEN | TX |
| 2015-04-10 | 972-848-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - TX | 004F | WILMER | TX |
| 2015-03-10 | 972-845-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - TX | 004F | PALMER | TX |
| 2015-03-03 | 972-833-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - TX | 004F | FERRIS | TX |
| 2015-03-03 | 972-895-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - TX | 004F | BRISTOL | TX |
| 2015-01-21 | 972-525-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - TX | 004F | WILMER | TX |
| 2015-01-21 | 972-597-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | ITALY | TX |
| 2015-01-20 | 972-515-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | RED OAK | TX |
| 2015-01-16 | 972-267-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | DALLAS | TX |
| 2015-01-16 | 972-371-7XXX | 7000–7999 | Assigned | METROPCS, INC. | 5562 | DALLAS | TX |
| 2015-01-16 | 972-774-8XXX | 8000–8999 | Assigned | METROPCS, INC. | 5562 | DALLAS | TX |
| 2014-12-15 | 972-373-4XXX | 4000–4999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | DALLAS | TX |
| 2014-12-04 | 972-946-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | GRANDPRARI | TX |
| 2014-12-03 | 972-737-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | ALLEN | TX |
| 2014-11-21 | 972-332-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - TX | 004F | ALLEN | TX |
| 2014-11-21 | 972-895-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - TX | 004F | BRISTOL | TX |
| 2014-11-21 | 972-908-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - TX | 004F | ALLEN | TX |
| 2014-11-21 | 972-954-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - TX | 004F | ALLEN | TX |
| 2014-11-20 | 972-452-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | SCURRY | TX |
| 2014-11-20 | 972-493-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | MILFORD | TX |
| 2014-11-20 | 972-627-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | AVALON | TX |
| 2014-11-14 | 972-515-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | RED OAK | TX |
| 2014-11-14 | 972-515-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | RED OAK | TX |
| 2014-11-10 | 972-457-0XXX | 0000–0999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | IRVING | TX |
| 2014-11-05 | 972-954-6XXX | 6000–6999 | Assigned | ONVOY, LLC - TX | 903C | ALLEN | TX |
| 2014-10-13 | 972-515-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | RED OAK | TX |
| 2014-09-30 | 972-426-9XXX | 9000–9999 | Assigned | ONVOY, LLC - TX | 903C | DLFTWTARPT | TX |
| 2014-09-30 | 972-947-9XXX | 9000–9999 | Assigned | ONVOY, LLC - TX | 903C | DLFTWTARPT | 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.