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 |
|---|---|---|---|---|---|---|---|
| 2006-07-26 | 970-529-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | CORTEZ | CO |
| 2006-07-18 | 970-631-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | 6567 | FT COLLINS | CO |
| 2006-07-18 | 970-631-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | 6567 | FT COLLINS | CO |
| 2006-07-07 | 970-878-6XXX | 6000–6999 | Assigned | QWEST CORPORATION | 9636 | MEEKER | CO |
| 2006-06-20 | 970-623-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | 6567 | GRAND JCT | CO |
| 2006-06-20 | 970-623-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | 6567 | GRAND JCT | CO |
| 2006-06-16 | 970-433-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | GRAND JCT | CO |
| 2006-06-16 | 970-433-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | GRAND JCT | CO |
| 2006-06-08 | 970-276-8XXX | 8000–8999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | HAYDEN | CO |
| 2006-06-08 | 970-370-2XXX | 2000–2999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | FORTMORGAN | CO |
| 2006-06-08 | 970-620-4XXX | 4000–4999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | CRAIG | CO |
| 2006-06-08 | 970-842-7XXX | 7000–7999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | BRUSH | CO |
| 2006-06-02 | 970-372-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | FT COLLINS | CO |
| 2006-06-02 | 970-372-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | FT COLLINS | CO |
| 2006-05-24 | 970-239-0XXX | 0000–0999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CO | 6118 | TELLURIDE | CO |
| 2006-05-18 | 970-301-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | GREELEY | CO |
| 2006-05-18 | 970-389-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | DILLON | CO |
| 2006-05-18 | 970-433-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | GRAND JCT | CO |
| 2006-05-18 | 970-497-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | MONTROSE | CO |
| 2006-05-18 | 970-930-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | GLENWD SPG | CO |
| 2006-05-17 | 970-422-1XXX | 1000–1999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CO | 6118 | DURANGO | CO |
| 2006-05-16 | 970-399-2XXX | 2000–2999 | Assigned | QWEST CORPORATION | 9636 | DELTA | CO |
| 2006-05-09 | 970-366-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | GLENWD SPG | CO |
| 2006-05-08 | 970-208-9XXX | 9000–9999 | Assigned | FASTTRACK COMMUNICATIONS, INC. - CO | 330B | GRAND JCT | CO |
| 2006-05-08 | 970-444-0XXX | 0000–0999 | Assigned | FASTTRACK COMMUNICATIONS, INC. - CO | 330B | BAYFIELD | CO |
| 2006-05-08 | 970-497-5XXX | 5000–5999 | Assigned | FASTTRACK COMMUNICATIONS, INC. - CO | 330B | MONTROSE | CO |
| 2006-05-08 | 970-529-2XXX | 2000–2999 | Assigned | FASTTRACK COMMUNICATIONS, INC. - CO | 330B | CORTEZ | CO |
| 2006-04-19 | 970-285-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CO | 6118 | PARACHUTE | CO |
| 2006-04-19 | 970-323-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CO | 6118 | OLATHE | CO |
| 2006-04-18 | 970-986-3XXX | 3000–3999 | Assigned | QWEST CORPORATION | 9636 | GRAND JCT | CO |
| 2006-04-10 | 970-744-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CO | 6118 | LOVELAND | CO |
| 2006-03-29 | 970-301-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | GREELEY | CO |
| 2006-03-28 | 970-986-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CO | 6118 | GRAND JCT | CO |
| 2006-03-23 | 970-333-8XXX | 8000–8999 | Assigned | METROPCS, INC. | 5562 | DILLON | CO |
| 2006-03-22 | 970-426-7XXX | 7000–7999 | Assigned | QWEST CORPORATION | 9636 | DURANGO | CO |
| 2006-03-15 | 970-624-1XXX | 1000–1999 | Assigned | QWEST CORPORATION | 9636 | LOVELAND | CO |
| 2006-03-15 | 970-624-2XXX | 2000–2999 | Assigned | QWEST CORPORATION | 9636 | LOVELAND | CO |
| 2006-03-15 | 970-624-3XXX | 3000–3999 | Assigned | QWEST CORPORATION | 9636 | LOVELAND | CO |
| 2006-03-15 | 970-624-4XXX | 4000–4999 | Assigned | QWEST CORPORATION | 9636 | LOVELAND | CO |
| 2006-03-15 | 970-624-5XXX | 5000–5999 | Assigned | QWEST CORPORATION | 9636 | LOVELAND | CO |
| 2006-03-10 | 970-301-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | GREELEY | CO |
| 2006-03-10 | 970-683-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | GRAND JCT | CO |
| 2006-03-08 | 970-986-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | 6567 | GRAND JCT | CO |
| 2006-03-03 | 970-639-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CO | 6118 | FRUITA | CO |
| 2006-03-03 | 970-704-8XXX | 8000–8999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CO | 6118 | CARBONDALE | CO |
| 2006-03-02 | 970-985-4XXX | 4000–4999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | GRAND JCT | CO |
| 2006-02-24 | 970-284-3XXX | 3000–3999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CO | 6118 | LA SALLE | CO |
| 2006-02-24 | 970-344-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CO | 6118 | BERTHOUD | CO |
| 2006-02-24 | 970-372-1XXX | 1000–1999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CO | 6118 | FT COLLINS | CO |
| 2006-02-24 | 970-372-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CO | 6118 | FT COLLINS | 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.