NumberResearchRecent thousands-block assignments
40 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 970
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 |
|---|---|---|---|---|---|---|---|
| 2011-07-29 | 970-286-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - CO | 078F | FT COLLINS | CO |
| 2011-07-29 | 970-823-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - CO | 078F | OLATHE | CO |
| 2011-07-20 | 970-286-7XXX | 7000–7999 | Assigned | BANDWIDTH.COM CLEC, LLC - CO | 078F | FT COLLINS | CO |
| 2011-07-20 | 970-658-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - CO | 078F | FT COLLINS | CO |
| 2011-07-20 | 970-658-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - CO | 078F | FT COLLINS | CO |
| 2011-07-18 | 970-795-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - CO | 078F | WINDSOR | CO |
| 2011-07-13 | 970-639-9XXX | 9000–9999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | FRUITA | CO |
| 2011-07-08 | 970-573-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | GREELEY | CO |
| 2011-07-05 | 970-316-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - CO | 078F | RIDGWAY | CO |
| 2011-07-05 | 970-325-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - CO | 078F | OURAY | CO |
| 2011-07-05 | 970-560-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | CORTEZ | CO |
| 2011-07-05 | 970-658-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | 6567 | FT COLLINS | CO |
| 2011-06-28 | 970-316-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - CO | 078F | RIDGWAY | CO |
| 2011-06-28 | 970-325-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - CO | 078F | OURAY | CO |
| 2011-06-28 | 970-460-9XXX | 9000–9999 | Assigned | COMCAST IP PHONE, LLC | 318J | WINDSOR | CO |
| 2011-06-21 | 970-300-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CO | 6118 | ASPEN | CO |
| 2011-06-14 | 970-286-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | FT COLLINS | CO |
| 2011-06-14 | 970-286-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | FT COLLINS | CO |
| 2011-06-09 | 970-317-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | 6567 | DURANGO | CO |
| 2011-06-09 | 970-646-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | 6567 | LOVELAND | CO |
| 2011-05-26 | 970-541-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - CO | 078F | LOVELAND | CO |
| 2011-05-26 | 970-614-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - CO | 078F | LA SALLE | CO |
| 2011-05-26 | 970-639-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - CO | 078F | FRUITA | CO |
| 2011-05-26 | 970-765-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - CO | 078F | MONTROSE | CO |
| 2011-05-24 | 970-425-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - CO | 078F | STERLING | CO |
| 2011-05-24 | 970-439-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - CO | 078F | STEAMBOSPG | CO |
| 2011-05-20 | 970-317-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - CO | 078F | DURANGO | CO |
| 2011-05-20 | 970-573-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - CO | 078F | GREELEY | CO |
| 2011-05-20 | 970-573-7XXX | 7000–7999 | Assigned | BANDWIDTH.COM CLEC, LLC - CO | 078F | GREELEY | CO |
| 2011-05-13 | 970-460-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - CO | 078F | WINDSOR | CO |
| 2011-05-13 | 970-823-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - CO | 078F | OLATHE | CO |
| 2011-05-05 | 970-658-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | 6567 | FT COLLINS | CO |
| 2011-04-27 | 970-729-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - CO | 078F | TELLURIDE | CO |
| 2011-04-22 | 970-573-4XXX | 4000–4999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | GREELEY | CO |
| 2011-04-22 | 970-628-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - CO | 078F | GRAND JCT | CO |
| 2011-04-22 | 970-628-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - CO | 078F | GRAND JCT | CO |
| 2011-04-22 | 970-658-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - CO | 078F | FT COLLINS | CO |
| 2011-04-22 | 970-658-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - CO | 078F | FT COLLINS | CO |
| 2011-04-22 | 970-658-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - CO | 078F | FT COLLINS | CO |
| 2011-04-22 | 970-658-4XXX | 4000–4999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | FT COLLINS | CO |
| 2011-04-12 | 970-423-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | BRECKENRDG | CO |
| 2011-04-06 | 970-573-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | 6567 | GREELEY | CO |
| 2011-03-30 | 970-818-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CO | 6118 | FT COLLINS | CO |
| 2011-03-28 | 970-550-9XXX | 9000–9999 | Assigned | ONVOY, LLC - CO | 026D | MAYBELL | CO |
| 2011-03-10 | 970-425-5XXX | 5000–5999 | Assigned | ONVOY, LLC - CO | 026D | STERLING | CO |
| 2011-03-08 | 970-573-3XXX | 3000–3999 | Assigned | LEVEL 3 TELECOM OF COLORADO, LLC - CO | 4574 | GREELEY | CO |
| 2011-03-07 | 970-279-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - CO | 078F | BASALT | CO |
| 2011-03-07 | 970-293-8XXX | 8000–8999 | Assigned | ONVOY, LLC - CO | 026D | RDFTHERLKS | CO |
| 2011-03-07 | 970-344-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - CO | 078F | BERTHOUD | CO |
| 2011-03-07 | 970-364-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - CO | 078F | GRANBY | CO |
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.