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 |
|---|---|---|---|---|---|---|---|
| 2015-08-17 | 307-761-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | LARAMIE | WY |
| 2015-07-21 | 307-365-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | CHEYENNE | WY |
| 2015-07-16 | 307-699-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | JACKSON | WY |
| 2015-07-08 | 307-757-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WY | 6566 | CHEYENNE | WY |
| 2015-05-28 | 307-264-6XXX | 6000–6999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | JACKSON | WY |
| 2015-05-28 | 307-314-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | LARAMIE | WY |
| 2015-05-28 | 307-417-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | RAWLINS | WY |
| 2015-05-28 | 307-622-5XXX | 5000–5999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | GILLETTE | WY |
| 2015-04-29 | 307-217-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - WY | 081F | BUFFALO | WY |
| 2015-04-16 | 307-228-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - WY | 081F | GILLETTE | WY |
| 2015-04-16 | 307-228-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - WY | 081F | GILLETTE | WY |
| 2015-04-16 | 307-316-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - WY | 081F | CHEYENNE | WY |
| 2015-04-16 | 307-316-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - WY | 081F | CHEYENNE | WY |
| 2015-04-16 | 307-316-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - WY | 081F | CHEYENNE | WY |
| 2015-04-09 | 307-209-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - WY | 081F | ROCK SPG | WY |
| 2015-03-31 | 307-219-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | POWELL | WY |
| 2015-03-24 | 307-273-1XXX | 1000–1999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | FARSON | WY |
| 2015-03-24 | 307-367-0XXX | 0000–0999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | PINEDALE | WY |
| 2015-03-24 | 307-379-1XXX | 1000–1999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | MEDICINBOW | WY |
| 2015-03-24 | 307-859-0XXX | 0000–0999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | DANIEL | WY |
| 2015-03-17 | 307-296-5XXX | 5000–5999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | CODY | WY |
| 2015-02-12 | 307-206-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | LANDER | WY |
| 2015-02-12 | 307-209-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | ROCK SPG | WY |
| 2015-02-12 | 307-216-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - WY | 081F | LUSK | WY |
| 2015-02-12 | 307-216-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | LUSK | WY |
| 2015-02-12 | 307-217-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | BUFFALO | WY |
| 2015-02-12 | 307-241-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | WHEATLAND | WY |
| 2015-02-12 | 307-309-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | GLENROCK | WY |
| 2015-02-12 | 307-313-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | EVANSTON | WY |
| 2015-02-12 | 307-364-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | GREENRIVER | WY |
| 2015-02-12 | 307-429-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | SHERIDAN | WY |
| 2015-02-12 | 307-543-5XXX | 5000–5999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | MORAN | WY |
| 2015-02-12 | 307-624-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | DOUGLAS | WY |
| 2015-02-12 | 307-735-6XXX | 6000–6999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | GLENDO | WY |
| 2015-02-12 | 307-800-6XXX | 6000–6999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | KEMMERER | WY |
| 2015-02-12 | 307-840-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | RIVERTON | WY |
| 2015-02-12 | 307-939-6XXX | 6000–6999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | WRIGHT | WY |
| 2015-02-11 | 307-206-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - WY | 081F | LANDER | WY |
| 2015-02-11 | 307-241-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - WY | 081F | WHEATLAND | WY |
| 2015-02-11 | 307-264-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - WY | 081F | JACKSON | WY |
| 2015-02-11 | 307-264-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - WY | 081F | JACKSON | WY |
| 2015-02-11 | 307-314-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - WY | 081F | LARAMIE | WY |
| 2015-02-11 | 307-314-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - WY | 081F | LARAMIE | WY |
| 2015-02-11 | 307-417-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - WY | 081F | RAWLINS | WY |
| 2015-02-11 | 307-429-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - WY | 081F | SHERIDAN | WY |
| 2015-02-11 | 307-439-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - WY | 081F | CASPER | WY |
| 2015-02-11 | 307-439-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - WY | 081F | CASPER | WY |
| 2015-02-11 | 307-463-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - WY | 081F | RIVERTON | WY |
| 2015-02-11 | 307-886-6XXX | 6000–6999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | AFTON | WY |
| 2015-02-10 | 307-939-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - WY | 081F | WRIGHT | 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.