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 |
|---|---|---|---|---|---|---|---|
| 2015-02-06 | 970-821-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | 6567 | FT COLLINS | CO |
| 2015-02-03 | 970-400-0XXX | 0000–0999 | Assigned | ONVOY, LLC - CO | 026D | GREELEY | CO |
| 2015-02-03 | 970-900-0XXX | 0000–0999 | Assigned | ONVOY, LLC - CO | 026D | FT COLLINS | CO |
| 2015-02-03 | 970-900-9XXX | 9000–9999 | Assigned | ONVOY, LLC - CO | 026D | FT COLLINS | CO |
| 2015-01-16 | 970-789-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | SO SIDNEY | CO |
| 2015-01-16 | 970-821-0XXX | 0000–0999 | Assigned | QWEST CORPORATION | 9636 | FT COLLINS | CO |
| 2015-01-16 | 970-821-1XXX | 1000–1999 | Assigned | QWEST CORPORATION | 9636 | FT COLLINS | CO |
| 2015-01-16 | 970-821-2XXX | 2000–2999 | Assigned | QWEST CORPORATION | 9636 | FT COLLINS | CO |
| 2015-01-16 | 970-821-3XXX | 3000–3999 | Assigned | QWEST CORPORATION | 9636 | FT COLLINS | CO |
| 2015-01-16 | 970-821-4XXX | 4000–4999 | Assigned | QWEST CORPORATION | 9636 | FT COLLINS | CO |
| 2015-01-14 | 970-707-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | GUNNISON | CO |
| 2015-01-14 | 970-866-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | LA SALLE | CO |
| 2015-01-13 | 970-820-1XXX | 1000–1999 | Assigned | QWEST CORPORATION | 9636 | LOVELAND | CO |
| 2015-01-13 | 970-820-2XXX | 2000–2999 | Assigned | QWEST CORPORATION | 9636 | LOVELAND | CO |
| 2015-01-13 | 970-820-3XXX | 3000–3999 | Assigned | QWEST CORPORATION | 9636 | LOVELAND | CO |
| 2015-01-13 | 970-820-4XXX | 4000–4999 | Assigned | QWEST CORPORATION | 9636 | LOVELAND | CO |
| 2015-01-13 | 970-820-5XXX | 5000–5999 | Assigned | QWEST CORPORATION | 9636 | LOVELAND | CO |
| 2015-01-13 | 970-820-6XXX | 6000–6999 | Assigned | QWEST CORPORATION | 9636 | LOVELAND | CO |
| 2015-01-12 | 970-810-0XXX | 0000–0999 | Assigned | QWEST CORPORATION | 9636 | GREELEY | CO |
| 2015-01-12 | 970-810-1XXX | 1000–1999 | Assigned | QWEST CORPORATION | 9636 | GREELEY | CO |
| 2015-01-12 | 970-810-2XXX | 2000–2999 | Assigned | QWEST CORPORATION | 9636 | GREELEY | CO |
| 2015-01-12 | 970-810-3XXX | 3000–3999 | Assigned | QWEST CORPORATION | 9636 | GREELEY | CO |
| 2015-01-12 | 970-810-4XXX | 4000–4999 | Assigned | QWEST CORPORATION | 9636 | GREELEY | CO |
| 2015-01-12 | 970-810-5XXX | 5000–5999 | Assigned | QWEST CORPORATION | 9636 | GREELEY | CO |
| 2015-01-12 | 970-810-6XXX | 6000–6999 | Assigned | QWEST CORPORATION | 9636 | GREELEY | CO |
| 2015-01-12 | 970-810-7XXX | 7000–7999 | Assigned | QWEST CORPORATION | 9636 | GREELEY | CO |
| 2015-01-12 | 970-810-8XXX | 8000–8999 | Assigned | QWEST CORPORATION | 9636 | GREELEY | CO |
| 2015-01-12 | 970-810-9XXX | 9000–9999 | Assigned | QWEST CORPORATION | 9636 | GREELEY | CO |
| 2015-01-12 | 970-822-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | 6567 | GRAND JCT | CO |
| 2015-01-12 | 970-829-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | 6567 | FT COLLINS | CO |
| 2014-12-18 | 970-363-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | FRASER | CO |
| 2014-12-17 | 970-426-4XXX | 4000–4999 | Assigned | FASTTRACK COMMUNICATIONS, INC. - CO | 330B | DURANGO | CO |
| 2014-12-09 | 970-517-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | HTSLPHRSPG | CO |
| 2014-12-09 | 970-702-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | 6567 | GREELEY | CO |
| 2014-12-09 | 970-822-0XXX | 0000–0999 | Assigned | ONVOY, LLC - CO | 026D | GRAND JCT | CO |
| 2014-12-09 | 970-822-1XXX | 1000–1999 | Assigned | ONVOY, LLC - CO | 026D | GRAND JCT | CO |
| 2014-12-09 | 970-825-0XXX | 0000–0999 | Assigned | ONVOY, LLC - CO | 026D | FT COLLINS | CO |
| 2014-12-09 | 970-825-1XXX | 1000–1999 | Assigned | ONVOY, LLC - CO | 026D | FT COLLINS | CO |
| 2014-12-04 | 970-714-7XXX | 7000–7999 | Assigned | FASTTRACK COMMUNICATIONS, INC. - CO | 330B | GREELEY | CO |
| 2014-12-02 | 970-422-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | DURANGO | CO |
| 2014-12-02 | 970-799-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | DURANGO | CO |
| 2014-11-26 | 970-822-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | GRAND JCT | CO |
| 2014-11-24 | 970-312-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | GRAND JCT | CO |
| 2014-11-24 | 970-829-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | FT COLLINS | CO |
| 2014-11-20 | 970-919-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | SILVERTON | CO |
| 2014-11-19 | 970-598-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | PLATTEVL | CO |
| 2014-11-12 | 970-833-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | WINDSOR | CO |
| 2014-11-10 | 970-699-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - CO | 078F | LOVELAND | CO |
| 2014-11-10 | 970-833-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - CO | 078F | WINDSOR | CO |
| 2014-11-07 | 970-517-0XXX | 0000–0999 | Assigned | ONVOY, LLC - CO | 026D | HTSLPHRSPG | 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.