NumberResearchRecent prefix assignments
380 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 2026-04
Which carriers received which NPA-NXX prefixes, and where. Assignments are initial assignments from NANPA records — because of number portability, the current serving carrier of individual numbers may differ. For finer-grained activity, see the thousands-block view above.
Most active assignees, last 30 days
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| Assigned | NPA-NXX | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|
| 970-878 | QWEST CORPORATION | 9636 | MEEKER | CO | |
| 970-879 | QWEST CORPORATION | 9636 | STEAMBOSPG | CO | |
| 970-880 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | 6567 | DURANGO | CO | |
| 970-881 | CENTURYTEL OF EAGLE, INC. DBA CENTURYLINK | 2185 | RDFTHERLKS | CO | |
| 970-882 | CENTURYTEL OF EAGLE, INC. DBA CENTURYLINK | 2185 | DOLORES | CO | |
| 970-883 | CENTURYTEL OF COLORADO, INC. DBA CENTURYLINK | 2208 | ALLISON | CO | |
| 970-884 | QWEST CORPORATION | 9636 | BAYFIELD | CO | |
| 970-885 | QWEST CORPORATION | 9631 | SO BIG SPG | CO | |
| 970-886 | HAXTUN TEL. CO. | 2190 | CROOK | CO | |
| 970-887 | QWEST CORPORATION | 9636 | GRANBY | CO | |
| 970-895 | WIGGINS TEL. ASSN. | 2209 | GROVER | CO | |
| 970-897 | NUNN TEL. CO. | 2194 | NUNN | CO | |
| 970-898 | TELEPORT COMMUNICATIONS AMERICA, LLC - CO | 7378 | FT COLLINS | CO | |
| 970-901 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | 6567 | MONTROSE | CO | |
| 970-903 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | 6567 | DURANGO | CO | |
| 970-904 | T-MOBILE USA, INC. | 6529 | VAIL | CO | |
| 970-911 | MULTIPLE OCN LISTING | MULT | XXXXXXXXXX | CO | |
| 970-914 | T-MOBILE USA, INC. | 6529 | VAIL | CO | |
| 970-920 | QWEST CORPORATION | 9636 | ASPEN | CO | |
| 970-921 | DELTA COUNTY TELE-COMM, INC. | 2184 | CRAWFORD | CO | |
| 970-922 | QWEST CORPORATION | 9636 | ASPEN | CO | |
| 970-923 | QWEST CORPORATION | 9636 | ASPEN | CO | |
| 970-925 | QWEST CORPORATION | 9636 | ASPEN | CO | |
| 970-926 | CENTURYTEL OF EAGLE, INC. DBA CENTURYLINK | 2185 | EDWARDS | CO | |
| 970-927 | QWEST CORPORATION | 9636 | BASALT | CO | |
| 970-928 | QWEST CORPORATION | 9636 | GLENWD SPG | CO | |
| 970-929 | DELTA COUNTY TELE-COMM, INC. | 2184 | SOMERSET | CO | |
| 970-930 | T-MOBILE USA, INC. | 6529 | GLENWD SPG | CO | |
| 970-931 | NUCLA-NATURITA TEL. CO. | 2193 | GATEWAY | CO | |
| 970-942 | UNION TELEPHONE COMPANY | 013B | MEEKER | CO | |
| 970-943 | QWEST CORPORATION | 9636 | GUNNISON | CO | |
| 970-944 | CENTURYTEL OF EAGLE, INC. DBA CENTURYLINK | 2185 | LAKE CITY | CO | |
| 970-945 | QWEST CORPORATION | 9636 | GLENWD SPG | CO | |
| 970-946 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | 6567 | DURANGO | CO | |
| 970-947 | QWEST CORPORATION | 9636 | GLENWD SPG | CO | |
| 970-948 | NEW CINGULAR WIRELESS PCS, LLC | 6010 | GLENWD SPG | CO | |
| 970-949 | QWEST CORPORATION | 9636 | VAIL | CO | |
| 970-950 | CO | ||||
| 970-958 | CO | ||||
| 970-959 | CO | ||||
| 970-962 | QWEST CORPORATION | 9636 | LOVELAND | CO | |
| 970-963 | QWEST CORPORATION | 9636 | CARBONDALE | CO | |
| 970-964 | ONVOY, LLC - CO | 026D | MONTROSE | CO | |
| 970-965 | ONVOY, LLC - CO | 026D | YUMA | CO | |
| 970-967 | RICO TEL. CO. | 2201 | RICO | CO | |
| 970-968 | QWEST CORPORATION | 9636 | DILLON | CO | |
| 970-976 | CO | ||||
| 970-977 | T-MOBILE USA, INC. | 6529 | VAIL | CO | |
| 970-978 | T-MOBILE USA, INC. | 6529 | GREELEY | CO | |
| 970-980 | T-MOBILE USA, INC. | 6529 | FT COLLINS | CO |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 2026-04 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.