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
Mar 2026
Feb 2026
Jan 2026
Dec 2025
Nov 2025
Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2013-03-26 | 307-271-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WY | 6566 | POWELL | WY |
| 2013-03-20 | 307-241-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WY | 6566 | WHEATLAND | WY |
| 2013-03-20 | 307-578-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WY | 6566 | CODY | WY |
| 2013-03-12 | 307-480-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WY | 6566 | THERMOPOLS | WY |
| 2013-02-22 | 307-441-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA WY-LLC | 879G | CASPER | WY |
| 2012-12-20 | 307-203-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | JACKSON | WY |
| 2012-12-14 | 307-200-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - WY | 9416 | JACKSON | WY |
| 2012-11-26 | 307-800-0XXX | 0000–0999 | Assigned | ONVOY, LLC - WY | 450F | KEMMERER | WY |
| 2012-11-26 | 307-800-7XXX | 7000–7999 | Assigned | ONVOY, LLC - WY | 450F | KEMMERER | WY |
| 2012-11-21 | 307-241-3XXX | 3000–3999 | Assigned | ONVOY, LLC - WY | 450F | WHEATLAND | WY |
| 2012-11-21 | 307-241-4XXX | 4000–4999 | Assigned | ONVOY, LLC - WY | 450F | WHEATLAND | WY |
| 2012-11-19 | 307-201-4XXX | 4000–4999 | Assigned | ONVOY, LLC - WY | 450F | JACKSON | WY |
| 2012-11-19 | 307-201-8XXX | 8000–8999 | Assigned | ONVOY, LLC - WY | 450F | JACKSON | WY |
| 2012-11-19 | 307-217-4XXX | 4000–4999 | Assigned | ONVOY, LLC - WY | 450F | BUFFALO | WY |
| 2012-11-19 | 307-217-5XXX | 5000–5999 | Assigned | ONVOY, LLC - WY | 450F | BUFFALO | WY |
| 2012-11-19 | 307-288-1XXX | 1000–1999 | Assigned | ONVOY, LLC - WY | 450F | EVANSTON | WY |
| 2012-11-19 | 307-288-2XXX | 2000–2999 | Assigned | ONVOY, LLC - WY | 450F | EVANSTON | WY |
| 2012-11-19 | 307-298-1XXX | 1000–1999 | Assigned | ONVOY, LLC - WY | 450F | DOUGLAS | WY |
| 2012-11-19 | 307-298-3XXX | 3000–3999 | Assigned | ONVOY, LLC - WY | 450F | DOUGLAS | WY |
| 2012-11-19 | 307-309-2XXX | 2000–2999 | Assigned | ONVOY, LLC - WY | 450F | GLENROCK | WY |
| 2012-11-19 | 307-309-3XXX | 3000–3999 | Assigned | ONVOY, LLC - WY | 450F | GLENROCK | WY |
| 2012-11-19 | 307-338-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WY | 6566 | TORRINGTON | WY |
| 2012-11-19 | 307-466-1XXX | 1000–1999 | Assigned | ONVOY, LLC - WY | 450F | GREENRIVER | WY |
| 2012-11-19 | 307-543-4XXX | 4000–4999 | Assigned | ONVOY, LLC - WY | 450F | MORAN | WY |
| 2012-11-19 | 307-683-0XXX | 0000–0999 | Assigned | ONVOY, LLC - WY | 450F | SHERIDAN | WY |
| 2012-11-19 | 307-735-0XXX | 0000–0999 | Assigned | ONVOY, LLC - WY | 450F | GLENDO | WY |
| 2012-11-19 | 307-828-0XXX | 0000–0999 | Assigned | ONVOY, LLC - WY | 450F | KEMMERER | WY |
| 2012-11-14 | 307-448-1XXX | 1000–1999 | Assigned | ONVOY, LLC - WY | 450F | ROCK SPG | WY |
| 2012-11-14 | 307-448-3XXX | 3000–3999 | Assigned | ONVOY, LLC - WY | 450F | ROCK SPG | WY |
| 2012-11-14 | 307-448-4XXX | 4000–4999 | Assigned | ONVOY, LLC - WY | 450F | ROCK SPG | WY |
| 2012-11-14 | 307-448-5XXX | 5000–5999 | Assigned | ONVOY, LLC - WY | 450F | ROCK SPG | WY |
| 2012-11-14 | 307-448-6XXX | 6000–6999 | Assigned | ONVOY, LLC - WY | 450F | ROCK SPG | WY |
| 2012-11-13 | 307-202-4XXX | 4000–4999 | Assigned | ONVOY, LLC - WY | 450F | POWELL | WY |
| 2012-11-13 | 307-202-5XXX | 5000–5999 | Assigned | ONVOY, LLC - WY | 450F | POWELL | WY |
| 2012-11-13 | 307-202-6XXX | 6000–6999 | Assigned | ONVOY, LLC - WY | 450F | POWELL | WY |
| 2012-11-13 | 307-202-7XXX | 7000–7999 | Assigned | ONVOY, LLC - WY | 450F | POWELL | WY |
| 2012-11-13 | 307-223-8XXX | 8000–8999 | Assigned | ONVOY, LLC - WY | 450F | LARAMIE | WY |
| 2012-11-13 | 307-223-9XXX | 9000–9999 | Assigned | ONVOY, LLC - WY | 450F | LARAMIE | WY |
| 2012-11-13 | 307-224-6XXX | 6000–6999 | Assigned | ONVOY, LLC - WY | 450F | CASPER | WY |
| 2012-11-13 | 307-224-8XXX | 8000–8999 | Assigned | ONVOY, LLC - WY | 450F | CASPER | WY |
| 2012-11-13 | 307-224-9XXX | 9000–9999 | Assigned | ONVOY, LLC - WY | 450F | CASPER | WY |
| 2012-11-13 | 307-240-2XXX | 2000–2999 | Assigned | ONVOY, LLC - WY | 450F | RIVERTON | WY |
| 2012-11-13 | 307-240-5XXX | 5000–5999 | Assigned | ONVOY, LLC - WY | 450F | RIVERTON | WY |
| 2012-11-13 | 307-240-6XXX | 6000–6999 | Assigned | ONVOY, LLC - WY | 450F | RIVERTON | WY |
| 2012-11-13 | 307-240-8XXX | 8000–8999 | Assigned | ONVOY, LLC - WY | 450F | RIVERTON | WY |
| 2012-11-13 | 307-242-1XXX | 1000–1999 | Assigned | ONVOY, LLC - WY | 450F | LAKE | WY |
| 2012-11-13 | 307-242-8XXX | 8000–8999 | Assigned | ONVOY, LLC - WY | 450F | LAKE | WY |
| 2012-11-13 | 307-248-5XXX | 5000–5999 | Assigned | ONVOY, LLC - WY | 450F | AFTON | WY |
| 2012-11-13 | 307-248-6XXX | 6000–6999 | Assigned | ONVOY, LLC - WY | 450F | AFTON | WY |
| 2012-11-13 | 307-248-9XXX | 9000–9999 | Assigned | ONVOY, LLC - WY | 450F | AFTON | 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.