NumberResearchRecent thousands-block assignments
21 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 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 |
|---|---|---|---|---|---|---|---|
| 2017-02-28 | 307-999-9XXX | 9000–9999 | Assigned | TELNYX LLC | 073H | MORAN | WY |
| 2017-02-24 | 307-888-8XXX | 8000–8999 | Assigned | TELNYX LLC | 073H | OLDFATHFUL | WY |
| 2017-02-09 | 307-203-1XXX | 1000–1999 | Assigned | AIRUS, INC. - WY | 581H | JACKSON | WY |
| 2017-01-09 | 307-621-9XXX | 9000–9999 | Assigned | AIRUS, INC. - WY | 581H | BUFFALO | WY |
| 2016-12-21 | 307-475-1XXX | 1000–1999 | Assigned | TELNYX LLC | 073H | CHEYENNE | WY |
| 2016-12-08 | 307-209-9XXX | 9000–9999 | Assigned | AIRUS, INC. - WY | 581H | ROCK SPG | WY |
| 2016-11-28 | 307-206-0XXX | 0000–0999 | Assigned | ONVOY, LLC - WY | 450F | LANDER | WY |
| 2016-11-28 | 307-209-3XXX | 3000–3999 | Assigned | ONVOY, LLC - WY | 450F | ROCK SPG | WY |
| 2016-11-28 | 307-735-1XXX | 1000–1999 | Assigned | ONVOY, LLC - WY | 450F | GLENDO | WY |
| 2016-11-16 | 307-205-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - WY | 9416 | LINGLE | WY |
| 2016-11-14 | 307-338-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - WY | 9416 | TORRINGTON | WY |
| 2016-10-31 | 307-683-1XXX | 1000–1999 | Assigned | AIRUS, INC. - WY | 581H | SHERIDAN | WY |
| 2016-09-26 | 307-264-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | JACKSON | WY |
| 2016-09-13 | 307-226-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | AFTON | WY |
| 2016-09-12 | 307-401-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | TORRINGTON | WY |
| 2016-08-23 | 307-296-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - WY | 081F | CODY | WY |
| 2016-08-18 | 307-343-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | LARAMIE | WY |
| 2016-08-11 | 307-481-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | LUSK | WY |
| 2016-08-11 | 307-829-3XXX | 3000–3999 | Assigned | TELEPORT COMMUNICATIONS AMERICA WY-LLC | 879G | CHEYENNE | WY |
| 2016-07-13 | 307-314-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WY | 6566 | LARAMIE | WY |
| 2016-07-13 | 307-314-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WY | 6566 | LARAMIE | WY |
| 2016-07-11 | 307-439-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | CASPER | WY |
| 2016-07-08 | 307-545-0XXX | 0000–0999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | OLDFATHFUL | WY |
| 2016-07-07 | 307-242-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - WY | 9416 | LAKE | WY |
| 2016-06-29 | 307-429-3XXX | 3000–3999 | Assigned | ONVOY, LLC - WY | 450F | SHERIDAN | WY |
| 2016-06-29 | 307-429-4XXX | 4000–4999 | Assigned | ONVOY, LLC - WY | 450F | SHERIDAN | WY |
| 2016-06-22 | 307-624-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - WY | 081F | DOUGLAS | WY |
| 2016-06-15 | 307-201-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - WY | 081F | JACKSON | WY |
| 2016-05-11 | 307-414-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WY | 6566 | CHEYENNE | WY |
| 2016-05-10 | 307-391-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | MOORCROFT | WY |
| 2016-04-12 | 307-206-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - WY | 081F | LANDER | WY |
| 2016-04-11 | 307-338-5XXX | 5000–5999 | Assigned | N.E. COLORADO CELLULAR, INC. | 6874 | TORRINGTON | WY |
| 2016-04-06 | 307-369-0XXX | 0000–0999 | Assigned | ONVOY, LLC - WY | 450F | CHEYENNE | WY |
| 2016-03-21 | 307-800-8XXX | 8000–8999 | Assigned | ALL WEST/WYOMING, INC. | 3880 | KEMMERER | WY |
| 2016-02-17 | 307-620-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | BUFFALO | WY |
| 2016-01-12 | 307-365-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | CHEYENNE | WY |
| 2015-12-31 | 307-264-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | JACKSON | WY |
| 2015-12-04 | 307-365-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | CHEYENNE | WY |
| 2015-11-23 | 307-275-7XXX | 7000–7999 | Assigned | ONVOY, LLC - WY | 450F | CHEYENNE | WY |
| 2015-11-23 | 307-316-6XXX | 6000–6999 | Assigned | ONVOY, LLC - WY | 450F | CHEYENNE | WY |
| 2015-11-10 | 307-462-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | CASPER | WY |
| 2015-10-30 | 307-365-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | CHEYENNE | WY |
| 2015-10-29 | 307-388-6XXX | 6000–6999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | WORLAND | WY |
| 2015-10-15 | 307-209-6XXX | 6000–6999 | Assigned | QWEST CORPORATION | 9636 | ROCK SPG | WY |
| 2015-10-12 | 307-447-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - WY | 9416 | SARATOGA | WY |
| 2015-10-08 | 307-264-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | JACKSON | WY |
| 2015-09-22 | 307-369-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WY | 6566 | CHEYENNE | WY |
| 2015-08-31 | 307-247-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | CASPER | WY |
| 2015-08-31 | 307-365-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | CHEYENNE | WY |
| 2015-08-25 | 307-414-1XXX | 1000–1999 | Assigned | AIRUS, INC. - WY | 581H | CHEYENNE | WY |
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.