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
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Apr 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2024-12-12 | 307-910-3XXX | 3000–3999 | Assigned | ONVOY, LLC - WY | 450F | CHEYENNE | WY |
| 2024-11-20 | 307-423-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WY | 6566 | BUFFALO | WY |
| 2024-11-20 | 307-426-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WY | 6566 | CHEYENNE | WY |
| 2024-11-20 | 307-452-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WY | 6566 | CASPER | WY |
| 2024-11-19 | 307-357-5XXX | 5000–5999 | Assigned | ONVOY, LLC - WY | 450F | LARAMIE | WY |
| 2024-11-15 | 307-453-8XXX | 8000–8999 | Assigned | NUSO, LLC | 732J | JACKSON | WY |
| 2024-11-08 | 307-449-0XXX | 0000–0999 | Assigned | ONVOY, LLC - WY | 450F | ROCK SPG | WY |
| 2024-11-07 | 307-415-5XXX | 5000–5999 | Assigned | NUSO, LLC | 732J | CHEYENNE | WY |
| 2024-11-07 | 307-452-8XXX | 8000–8999 | Assigned | NUSO, LLC | 732J | CASPER | WY |
| 2024-11-07 | 307-452-9XXX | 9000–9999 | Assigned | NUSO, LLC | 732J | CASPER | WY |
| 2024-10-25 | 307-409-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | LA GRANGE | WY |
| 2024-10-10 | 307-357-8XXX | 8000–8999 | Assigned | ONVOY, LLC - WY | 450F | LARAMIE | WY |
| 2024-10-10 | 307-910-2XXX | 2000–2999 | Assigned | ONVOY, LLC - WY | 450F | CHEYENNE | WY |
| 2024-09-27 | 307-454-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | RIVERTON | WY |
| 2024-09-24 | 307-443-4XXX | 4000–4999 | Assigned | ONVOY SPECTRUM, LLC | 624H | CHEYENNE | WY |
| 2024-09-24 | 307-443-5XXX | 5000–5999 | Assigned | ONVOY SPECTRUM, LLC | 624H | CHEYENNE | WY |
| 2024-09-24 | 307-443-6XXX | 6000–6999 | Assigned | ONVOY SPECTRUM, LLC | 624H | CHEYENNE | WY |
| 2024-09-18 | 307-292-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | CHEYENNE | WY |
| 2024-09-18 | 307-292-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | CHEYENNE | WY |
| 2024-09-18 | 307-292-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | CHEYENNE | WY |
| 2024-09-18 | 307-998-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | SHERIDAN | WY |
| 2024-09-18 | 307-998-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | SHERIDAN | WY |
| 2024-09-11 | 307-289-7XXX | 7000–7999 | Assigned | ONVOY, LLC - WY | 450F | CHEYENNE | WY |
| 2024-09-11 | 307-410-6XXX | 6000–6999 | Assigned | ONVOY, LLC - WY | 450F | POWELL | WY |
| 2024-08-29 | 307-410-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WY | 6566 | POWELL | WY |
| 2024-08-29 | 307-881-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WY | 6566 | WHEATLAND | WY |
| 2024-08-22 | 307-910-1XXX | 1000–1999 | Assigned | ONVOY, LLC - WY | 450F | CHEYENNE | WY |
| 2024-07-30 | 307-419-6XXX | 6000–6999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | CODY | WY |
| 2024-07-11 | 307-355-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | LA GRANGE | WY |
| 2024-06-25 | 307-452-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - WY | 9416 | CASPER | WY |
| 2024-06-20 | 307-453-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | JACKSON | WY |
| 2024-06-18 | 307-453-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - WY | 9416 | JACKSON | WY |
| 2024-06-14 | 307-357-3XXX | 3000–3999 | Assigned | ONVOY, LLC - WY | 450F | LARAMIE | WY |
| 2024-06-14 | 307-357-4XXX | 4000–4999 | Assigned | ONVOY, LLC - WY | 450F | LARAMIE | WY |
| 2024-06-14 | 307-410-3XXX | 3000–3999 | Assigned | ONVOY, LLC - WY | 450F | POWELL | WY |
| 2024-06-14 | 307-449-1XXX | 1000–1999 | Assigned | ONVOY, LLC - WY | 450F | ROCK SPG | WY |
| 2024-06-14 | 307-667-5XXX | 5000–5999 | Assigned | ONVOY, LLC - WY | 450F | RAWLINS | WY |
| 2024-06-14 | 307-990-5XXX | 5000–5999 | Assigned | ONVOY, LLC - WY | 450F | LANDER | WY |
| 2024-06-14 | 307-998-0XXX | 0000–0999 | Assigned | ONVOY, LLC - WY | 450F | SHERIDAN | WY |
| 2024-06-13 | 307-415-2XXX | 2000–2999 | Assigned | NUSO, LLC | 732J | CHEYENNE | WY |
| 2024-06-13 | 307-415-3XXX | 3000–3999 | Assigned | NUSO, LLC | 732J | CHEYENNE | WY |
| 2024-06-13 | 307-453-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WY | 6566 | JACKSON | WY |
| 2024-06-13 | 307-533-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | SHERIDAN | WY |
| 2024-06-12 | 307-263-7XXX | 7000–7999 | Assigned | ONVOY, LLC - WY | 450F | CHEYENNE | WY |
| 2024-06-12 | 307-303-3XXX | 3000–3999 | Assigned | ONVOY, LLC - WY | 450F | GREENRIVER | WY |
| 2024-06-12 | 307-419-5XXX | 5000–5999 | Assigned | ONVOY, LLC - WY | 450F | CODY | WY |
| 2024-06-12 | 307-428-1XXX | 1000–1999 | Assigned | ONVOY, LLC - WY | 450F | DOUGLAS | WY |
| 2024-06-12 | 307-434-8XXX | 8000–8999 | Assigned | ONVOY, LLC - WY | 450F | GILLETTE | WY |
| 2024-06-12 | 307-434-9XXX | 9000–9999 | Assigned | ONVOY, LLC - WY | 450F | GILLETTE | WY |
| 2024-06-07 | 307-442-1XXX | 1000–1999 | Assigned | ONVOY, LLC - WY | 450F | EVANSTON | 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.