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 |
|---|---|---|---|---|---|---|---|
| 2015-01-13 | 307-202-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - WY | 081F | POWELL | WY |
| 2014-12-19 | 307-209-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WY | 6566 | ROCK SPG | WY |
| 2014-12-19 | 307-209-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WY | 6566 | ROCK SPG | WY |
| 2014-12-19 | 307-276-1XXX | 1000–1999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | BIG PINEY | WY |
| 2014-12-19 | 307-788-8XXX | 8000–8999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | WEST LYMAN | WY |
| 2014-12-19 | 307-834-8XXX | 8000–8999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | LA GRANGE | WY |
| 2014-12-19 | 307-836-8XXX | 8000–8999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | GUERNSEY | WY |
| 2014-12-19 | 307-837-9XXX | 9000–9999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | LINGLE | WY |
| 2014-12-18 | 307-241-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - WY | 081F | WHEATLAND | WY |
| 2014-12-18 | 307-309-9XXX | 9000–9999 | Assigned | ADVANCED COMMUNICATIONS TECHNOLOGY, INC. - WY | 268A | GLENROCK | WY |
| 2014-12-18 | 307-624-1XXX | 1000–1999 | Assigned | ADVANCED COMMUNICATIONS TECHNOLOGY, INC. - WY | 268A | DOUGLAS | WY |
| 2014-11-24 | 307-578-9XXX | 9000–9999 | Assigned | TELEPORT COMMUNICATIONS AMERICA WY-LLC | 879G | CODY | WY |
| 2014-11-24 | 307-829-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | CHEYENNE | WY |
| 2014-11-24 | 307-881-1XXX | 1000–1999 | Assigned | ADVANCED COMMUNICATIONS TECHNOLOGY, INC. - WY | 268A | WHEATLAND | WY |
| 2014-11-19 | 307-203-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - WY | 081F | JACKSON | WY |
| 2014-11-19 | 307-203-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - WY | 081F | JACKSON | WY |
| 2014-11-19 | 307-206-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - WY | 081F | LANDER | WY |
| 2014-11-05 | 307-401-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | TORRINGTON | WY |
| 2014-10-30 | 307-920-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | CHEYENNE | WY |
| 2014-10-30 | 307-920-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | CHEYENNE | WY |
| 2014-10-29 | 307-216-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - WY | 081F | LUSK | WY |
| 2014-10-29 | 307-886-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - WY | 081F | AFTON | WY |
| 2014-10-28 | 307-217-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - WY | 081F | BUFFALO | WY |
| 2014-10-28 | 307-271-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - WY | 081F | POWELL | WY |
| 2014-10-28 | 307-296-7XXX | 7000–7999 | Assigned | BANDWIDTH.COM CLEC, LLC - WY | 081F | CODY | WY |
| 2014-10-28 | 307-314-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - WY | 081F | LARAMIE | WY |
| 2014-10-28 | 307-316-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - WY | 081F | CHEYENNE | WY |
| 2014-10-28 | 307-439-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - WY | 081F | CASPER | WY |
| 2014-10-22 | 307-621-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA WY-LLC | 879G | BUFFALO | WY |
| 2014-10-21 | 307-296-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WY | 6566 | CODY | WY |
| 2014-10-21 | 307-338-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WY | 6566 | TORRINGTON | WY |
| 2014-10-21 | 307-823-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WY | 6566 | CHEYENNE | WY |
| 2014-10-21 | 307-823-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WY | 6566 | CHEYENNE | WY |
| 2014-10-17 | 307-797-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | CASPER | WY |
| 2014-10-14 | 307-228-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WY | 6566 | GILLETTE | WY |
| 2014-10-14 | 307-439-2XXX | 2000–2999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | CASPER | WY |
| 2014-10-01 | 307-677-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WY | 6566 | EVANSTON | WY |
| 2014-09-29 | 307-459-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - WY | 9416 | CHEYENNE | WY |
| 2014-09-12 | 307-388-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WY | 6566 | WORLAND | WY |
| 2014-09-05 | 307-365-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | CHEYENNE | WY |
| 2014-09-02 | 307-429-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA WY-LLC | 879G | SHERIDAN | WY |
| 2014-08-25 | 307-228-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA WY-LLC | 879G | GILLETTE | WY |
| 2014-08-12 | 307-365-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WY | 6566 | CHEYENNE | WY |
| 2014-08-04 | 307-224-3XXX | 3000–3999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - WY | 9416 | CASPER | WY |
| 2014-08-04 | 307-228-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - WY | 9416 | GILLETTE | WY |
| 2014-08-04 | 307-761-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | LARAMIE | WY |
| 2014-07-11 | 307-439-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WY | 6566 | CASPER | WY |
| 2014-07-11 | 307-920-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | CHEYENNE | WY |
| 2014-07-11 | 307-920-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | CHEYENNE | WY |
| 2014-06-25 | 307-340-3XXX | 3000–3999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - WY | 9416 | LUSK | 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.