NumberResearchRecent thousands-block assignments
21 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026
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 307
New assignments by month
Sep 2026
Aug 2026
Jul 2026
Jun 2026
May 2026
Apr 2026
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Jan 2026
Dec 2025
Nov 2025
Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2022-01-27 | 307-306-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - WY | 081F | DOUGLAS | WY |
| 2022-01-20 | 307-888-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - WY | 081F | OLDFATHFUL | WY |
| 2022-01-20 | 307-999-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - WY | 081F | MORAN | WY |
| 2022-01-16 | 307-445-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - WY | 081F | KEMMERER | WY |
| 2022-01-06 | 307-263-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | CHEYENNE | WY |
| 2022-01-06 | 307-263-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | CHEYENNE | WY |
| 2021-12-15 | 307-291-3XXX | 3000–3999 | Assigned | ONVOY SPECTRUM, LLC | 624H | CODY | WY |
| 2021-12-15 | 307-291-4XXX | 4000–4999 | Assigned | ONVOY SPECTRUM, LLC | 624H | CODY | WY |
| 2021-12-15 | 307-291-5XXX | 5000–5999 | Assigned | ONVOY SPECTRUM, LLC | 624H | CODY | WY |
| 2021-12-15 | 307-291-6XXX | 6000–6999 | Assigned | ONVOY SPECTRUM, LLC | 624H | CODY | WY |
| 2021-12-15 | 307-291-7XXX | 7000–7999 | Assigned | ONVOY SPECTRUM, LLC | 624H | CODY | WY |
| 2021-12-15 | 307-407-2XXX | 2000–2999 | Assigned | ONVOY SPECTRUM, LLC | 624H | WSPEARFISH | WY |
| 2021-12-15 | 307-900-6XXX | 6000–6999 | Assigned | ONVOY SPECTRUM, LLC | 624H | GLENDO | WY |
| 2021-12-13 | 307-291-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - WY | 081F | CODY | WY |
| 2021-12-10 | 307-458-9XXX | 9000–9999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | CASPER | WY |
| 2021-12-03 | 307-338-4XXX | 4000–4999 | Assigned | ONVOY, LLC - WY | 450F | TORRINGTON | WY |
| 2021-12-03 | 307-374-4XXX | 4000–4999 | Assigned | ONVOY, LLC - WY | 450F | ROCK SPG | WY |
| 2021-12-03 | 307-374-5XXX | 5000–5999 | Assigned | ONVOY, LLC - WY | 450F | ROCK SPG | WY |
| 2021-12-03 | 307-381-4XXX | 4000–4999 | Assigned | ONVOY, LLC - WY | 450F | SHERIDAN | WY |
| 2021-12-03 | 307-381-5XXX | 5000–5999 | Assigned | ONVOY, LLC - WY | 450F | SHERIDAN | WY |
| 2021-12-03 | 307-387-4XXX | 4000–4999 | Assigned | ONVOY, LLC - WY | 450F | GILLETTE | WY |
| 2021-12-03 | 307-387-5XXX | 5000–5999 | Assigned | ONVOY, LLC - WY | 450F | GILLETTE | WY |
| 2021-12-03 | 307-395-4XXX | 4000–4999 | Assigned | ONVOY, LLC - WY | 450F | LARAMIE | WY |
| 2021-12-03 | 307-395-5XXX | 5000–5999 | Assigned | ONVOY, LLC - WY | 450F | LARAMIE | WY |
| 2021-11-23 | 307-387-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - WY | 081F | GILLETTE | WY |
| 2021-11-23 | 307-487-7XXX | 7000–7999 | Assigned | BANDWIDTH.COM CLEC, LLC - WY | 081F | GILLETTE | WY |
| 2021-11-18 | 307-770-7XXX | 7000–7999 | Assigned | ONVOY, LLC - WY | 450F | FARSON | WY |
| 2021-11-15 | 307-342-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | JACKSON | WY |
| 2021-11-05 | 307-397-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | HANNA | WY |
| 2021-11-05 | 307-397-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | HANNA | WY |
| 2021-11-05 | 307-398-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | LABARGE | WY |
| 2021-11-05 | 307-398-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | LABARGE | WY |
| 2021-11-05 | 307-402-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | MT VIEW | WY |
| 2021-11-05 | 307-402-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | MT VIEW | WY |
| 2021-11-05 | 307-408-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | LYMAN | WY |
| 2021-11-05 | 307-408-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | LYMAN | WY |
| 2021-11-05 | 307-423-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - WY | 081F | BUFFALO | WY |
| 2021-11-03 | 307-306-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - WY | 081F | DOUGLAS | WY |
| 2021-11-03 | 307-384-0XXX | 0000–0999 | Assigned | COMMIO, LLC | 939H | AFTON | WY |
| 2021-11-03 | 307-384-1XXX | 1000–1999 | Assigned | COMMIO, LLC | 939H | AFTON | WY |
| 2021-11-03 | 307-447-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SARATOGA | WY |
| 2021-11-03 | 307-447-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SARATOGA | WY |
| 2021-11-02 | 307-298-8XXX | 8000–8999 | Assigned | TERRA NOVA TELECOM INC. | 145J | DOUGLAS | WY |
| 2021-11-01 | 307-216-1XXX | 1000–1999 | Assigned | COMMIO, LLC | 939H | LUSK | WY |
| 2021-11-01 | 307-216-6XXX | 6000–6999 | Assigned | COMMIO, LLC | 939H | LUSK | WY |
| 2021-11-01 | 307-667-8XXX | 8000–8999 | Assigned | COMMIO, LLC | 939H | RAWLINS | WY |
| 2021-11-01 | 307-667-9XXX | 9000–9999 | Assigned | COMMIO, LLC | 939H | RAWLINS | WY |
| 2021-10-28 | 307-291-1XXX | 1000–1999 | Assigned | COMMIO, LLC | 939H | CODY | WY |
| 2021-10-28 | 307-291-2XXX | 2000–2999 | Assigned | COMMIO, LLC | 939H | CODY | WY |
| 2021-10-28 | 307-440-0XXX | 0000–0999 | Assigned | COMMIO, LLC | 939H | BASIN | WY |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.