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 |
|---|---|---|---|---|---|---|---|
| 2005-07-07 | 970-314-7XXX | 7000–7999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | GRAND JCT | CO |
| 2005-07-06 | 970-283-3XXX | 3000–3999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CO | 6118 | DE BEQUE | CO |
| 2005-07-06 | 970-300-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CO | 6118 | ASPEN | CO |
| 2005-07-06 | 970-744-3XXX | 3000–3999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CO | 6118 | LOVELAND | CO |
| 2005-07-06 | 970-744-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CO | 6118 | LOVELAND | CO |
| 2005-07-05 | 970-366-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | GLENWD SPG | CO |
| 2005-06-27 | 970-274-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | GLENWD SPG | CO |
| 2005-06-25 | 970-556-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | 6567 | FT COLLINS | CO |
| 2005-06-25 | 970-556-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | 6567 | FT COLLINS | CO |
| 2005-06-25 | 970-985-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | 6567 | GRAND JCT | CO |
| 2005-06-25 | 970-985-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | 6567 | GRAND JCT | CO |
| 2005-06-25 | 970-985-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | 6567 | GRAND JCT | CO |
| 2005-06-13 | 970-232-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | FT COLLINS | CO |
| 2005-06-08 | 970-314-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | GRAND JCT | CO |
| 2005-06-01 | 970-361-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | GRAND JCT | CO |
| 2005-05-26 | 970-764-6XXX | 6000–6999 | Assigned | QWEST CORPORATION | 9636 | DURANGO | CO |
| 2005-05-24 | 970-488-4XXX | 4000–4999 | Assigned | QWEST CORPORATION | 9636 | FT COLLINS | CO |
| 2005-05-24 | 970-488-5XXX | 5000–5999 | Assigned | QWEST CORPORATION | 9636 | FT COLLINS | CO |
| 2005-05-24 | 970-488-6XXX | 6000–6999 | Assigned | QWEST CORPORATION | 9636 | FT COLLINS | CO |
| 2005-05-24 | 970-488-7XXX | 7000–7999 | Assigned | QWEST CORPORATION | 9636 | FT COLLINS | CO |
| 2005-05-24 | 970-488-8XXX | 8000–8999 | Assigned | QWEST CORPORATION | 9636 | FT COLLINS | CO |
| 2005-05-17 | 970-314-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | GRAND JCT | CO |
| 2005-05-17 | 970-314-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | GRAND JCT | CO |
| 2005-05-17 | 970-964-4XXX | 4000–4999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | MONTROSE | CO |
| 2005-05-16 | 970-208-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | GRAND JCT | CO |
| 2005-05-12 | 970-313-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | GREELEY | CO |
| 2005-04-13 | 970-556-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | 6567 | FT COLLINS | CO |
| 2005-04-08 | 970-443-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | FT COLLINS | CO |
| 2005-04-05 | 970-372-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CO | 6118 | FT COLLINS | CO |
| 2005-04-05 | 970-372-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CO | 6118 | FT COLLINS | CO |
| 2005-04-05 | 970-778-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | GRAND JCT | CO |
| 2005-03-31 | 970-314-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | GRAND JCT | CO |
| 2005-03-31 | 970-314-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | GRAND JCT | CO |
| 2005-03-31 | 970-324-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | GREELEY | CO |
| 2005-03-31 | 970-331-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | VAIL | CO |
| 2005-03-01 | 970-443-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | FT COLLINS | CO |
| 2005-02-25 | 970-344-2XXX | 2000–2999 | Assigned | ONVOY, LLC - CO | 026D | BERTHOUD | CO |
| 2005-02-24 | 970-344-1XXX | 1000–1999 | Assigned | ONVOY, LLC - CO | 026D | BERTHOUD | CO |
| 2005-02-16 | 970-497-1XXX | 1000–1999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CO | 6118 | MONTROSE | CO |
| 2005-02-16 | 970-497-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CO | 6118 | MONTROSE | CO |
| 2005-02-16 | 970-497-3XXX | 3000–3999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CO | 6118 | MONTROSE | CO |
| 2005-02-15 | 970-373-1XXX | 1000–1999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CO | 6118 | GREELEY | CO |
| 2005-02-09 | 970-298-0XXX | 0000–0999 | Assigned | QWEST CORPORATION | 9636 | GRAND JCT | CO |
| 2005-02-09 | 970-298-1XXX | 1000–1999 | Assigned | QWEST CORPORATION | 9636 | GRAND JCT | CO |
| 2005-02-09 | 970-298-2XXX | 2000–2999 | Assigned | QWEST CORPORATION | 9636 | GRAND JCT | CO |
| 2005-02-09 | 970-298-3XXX | 3000–3999 | Assigned | QWEST CORPORATION | 9636 | GRAND JCT | CO |
| 2005-02-09 | 970-298-4XXX | 4000–4999 | Assigned | QWEST CORPORATION | 9636 | GRAND JCT | CO |
| 2005-02-09 | 970-298-5XXX | 5000–5999 | Assigned | QWEST CORPORATION | 9636 | GRAND JCT | CO |
| 2005-02-09 | 970-298-6XXX | 6000–6999 | Assigned | QWEST CORPORATION | 9636 | GRAND JCT | CO |
| 2005-02-09 | 970-298-7XXX | 7000–7999 | Assigned | QWEST CORPORATION | 9636 | GRAND JCT | 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.