NumberResearchRecent thousands-block assignments
38 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 |
|---|---|---|---|---|---|---|---|
| 2014-04-25 | 970-710-2XXX | 2000–2999 | Assigned | COMCAST IP PHONE, LLC | 318J | ASPEN | CO |
| 2014-04-25 | 970-713-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | CRESTEDBTE | CO |
| 2014-04-25 | 970-716-5XXX | 5000–5999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | EATON | CO |
| 2014-04-25 | 970-717-6XXX | 6000–6999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | HAYDEN | CO |
| 2014-04-25 | 970-718-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | BASALT | CO |
| 2014-04-25 | 970-737-5XXX | 5000–5999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | GILCREST | CO |
| 2014-04-25 | 970-798-5XXX | 5000–5999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | GRAND LAKE | CO |
| 2014-04-25 | 970-847-9XXX | 9000–9999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | HILLROSE | CO |
| 2014-04-24 | 970-409-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - CO | 078F | DILLON | CO |
| 2014-04-16 | 970-987-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | 6567 | GLENWD SPG | CO |
| 2014-04-02 | 970-697-2XXX | 2000–2999 | Assigned | INTERLINK ADV SVC DBA FORETHOUGHT.NET - CO | 5972 | GRAND JCT | CO |
| 2014-03-31 | 970-633-7XXX | 7000–7999 | Assigned | FASTTRACK COMMUNICATIONS, INC. - CO | 330B | OURAY | CO |
| 2014-03-27 | 970-342-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | LOVELAND | CO |
| 2014-03-27 | 970-342-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | 6567 | LOVELAND | CO |
| 2014-03-27 | 970-342-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | 6567 | LOVELAND | CO |
| 2014-03-27 | 970-409-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | DILLON | CO |
| 2014-03-27 | 970-459-8XXX | 8000–8999 | Assigned | INTERLINK ADV SVC DBA FORETHOUGHT.NET - CO | 5972 | DURANGO | CO |
| 2014-03-25 | 970-985-7XXX | 7000–7999 | Assigned | QWEST CORPORATION | 9636 | GRAND JCT | CO |
| 2014-03-21 | 970-294-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | FT COLLINS | CO |
| 2014-03-21 | 970-294-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | FT COLLINS | CO |
| 2014-03-19 | 970-236-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - CO | 078F | ASPEN | CO |
| 2014-03-19 | 970-591-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - CO | 078F | ESTES PARK | CO |
| 2014-03-19 | 970-591-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - CO | 078F | ESTES PARK | CO |
| 2014-03-18 | 970-615-7XXX | 7000–7999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | MONTROSE | CO |
| 2014-03-17 | 970-889-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | FT COLLINS | CO |
| 2014-03-17 | 970-889-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | FT COLLINS | CO |
| 2014-03-12 | 970-393-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | VAIL | CO |
| 2014-03-12 | 970-393-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | VAIL | CO |
| 2014-03-11 | 970-534-6XXX | 6000–6999 | Assigned | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 3467 | GREELEY | CO |
| 2014-03-07 | 970-644-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | 6567 | GRAND JCT | CO |
| 2014-03-07 | 970-644-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | 6567 | GRAND JCT | CO |
| 2014-03-07 | 970-889-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | 6567 | FT COLLINS | CO |
| 2014-03-06 | 970-815-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | GREELEY | CO |
| 2014-03-03 | 970-547-6XXX | 6000–6999 | Assigned | ZIPPYTECH INCORPORATED | 588A | BRECKENRDG | CO |
| 2014-02-28 | 970-584-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | GREELEY | CO |
| 2014-02-28 | 970-584-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | GREELEY | CO |
| 2014-02-03 | 970-644-5XXX | 5000–5999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | GRAND JCT | CO |
| 2014-01-13 | 970-363-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - CO | 078F | FRASER | CO |
| 2014-01-08 | 970-342-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | 6567 | LOVELAND | CO |
| 2014-01-08 | 970-644-3XXX | 3000–3999 | Assigned | QWEST CORPORATION | 9636 | GRAND JCT | CO |
| 2014-01-08 | 970-644-4XXX | 4000–4999 | Assigned | PAETEC ITEL, LLC | 829J | GRAND JCT | CO |
| 2014-01-08 | 970-725-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - CO | 078F | HTSLPHRSPG | CO |
| 2014-01-08 | 970-888-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | 6567 | GREELEY | CO |
| 2013-12-27 | 970-341-6XXX | 6000–6999 | Assigned | FASTTRACK COMMUNICATIONS, INC. - CO | 330B | OLATHE | CO |
| 2013-12-12 | 970-285-8XXX | 8000–8999 | Assigned | QWEST CORPORATION | 9636 | PARACHUTE | CO |
| 2013-12-09 | 970-644-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | 6567 | GRAND JCT | CO |
| 2013-12-09 | 970-889-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | 6567 | FT COLLINS | CO |
| 2013-12-06 | 970-459-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | DURANGO | CO |
| 2013-12-05 | 970-296-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | FRUITA | CO |
| 2013-12-05 | 970-833-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | WINDSOR | 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.