NumberResearchRecent prefix assignments
5 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 |
|---|---|---|---|---|---|
| 303-591 | T-MOBILE USA, INC. | 6529 | DENVER | CO | |
| 303-596 | T-MOBILE USA, INC. | 6529 | DENVER | CO | |
| 303-598 | T-MOBILE USA, INC. | 6529 | DENVER | CO | |
| 303-641 | T-MOBILE USA, INC. | 6529 | DENVER | CO | |
| 303-667 | T-MOBILE USA, INC. | 6529 | DENVER | CO | |
| 303-668 | T-MOBILE USA, INC. | 6529 | DENVER | CO | |
| 303-669 | T-MOBILE USA, INC. | 6529 | DENVER | CO | |
| 303-725 | T-MOBILE USA, INC. | 6529 | DENVER | CO | |
| 303-875 | T-MOBILE USA, INC. | 6529 | DENVER | CO | |
| 303-901 | T-MOBILE USA, INC. | 6529 | DENVER | CO | |
| 303-931 | T-MOBILE USA, INC. | 6529 | DENVER | CO | |
| 303-944 | T-MOBILE USA, INC. | 6529 | DENVER | CO | |
| 303-946 | T-MOBILE USA, INC. | 6529 | DENVER | CO | |
| 303-949 | T-MOBILE USA, INC. | 6529 | DENVER | CO | |
| 303-960 | T-MOBILE USA, INC. | 6529 | DENVER | CO | |
| 303-961 | T-MOBILE USA, INC. | 6529 | DENVER | CO | |
| 303-994 | T-MOBILE USA, INC. | 6529 | DENVER | CO | |
| 303-995 | T-MOBILE USA, INC. | 6529 | DENVER | CO | |
| 304-200 | T-MOBILE USA, INC. | 6529 | WILLIAMSTN | WV | |
| 304-222 | T-MOBILE USA, INC. | 6529 | BECKLEY | WV | |
| 304-237 | T-MOBILE USA, INC. | 6529 | BECKLEY | WV | |
| 304-412 | T-MOBILE USA, INC. | 6529 | HNTNGTNZN1 | WV | |
| 304-415 | T-MOBILE USA, INC. | 6529 | CHRLSTNZN1 | WV | |
| 304-416 | T-MOBILE USA, INC. | 6529 | HNTNGTNZN1 | WV | |
| 304-417 | T-MOBILE USA, INC. | 6529 | HNTNGTNZN1 | WV | |
| 304-419 | T-MOBILE USA, INC. | 6529 | CHRLSTNZN1 | WV | |
| 304-421 | T-MOBILE USA, INC. | 6529 | CHRLSTNZN1 | WV | |
| 304-437 | T-MOBILE USA, INC. | 6529 | CHRLSTNZN1 | WV | |
| 304-440 | T-MOBILE USA, INC. | 6529 | RAVENSWOOD | WV | |
| 304-610 | T-MOBILE USA, INC. | 6529 | CHRLSTNZN1 | WV | |
| 304-615 | T-MOBILE USA, INC. | 6529 | PRKRSBGZN1 | WV | |
| 304-617 | T-MOBILE USA, INC. | 6529 | HNTNGTNZN1 | WV | |
| 304-812 | T-MOBILE USA, INC. | 6529 | PTPLEASANT | WV | |
| 304-910 | T-MOBILE USA, INC. | 6529 | BLUEFIELD | WV | |
| 304-922 | T-MOBILE USA, INC. | 6529 | BLUEFIELD | WV | |
| 304-955 | T-MOBILE USA, INC. | 6529 | HNTNGTNZN2 | WV | |
| 307-220 | T-MOBILE USA, INC. | 6529 | CHEYENNE | WY | |
| 307-221 | T-MOBILE USA, INC. | 6529 | CHEYENNE | WY | |
| 307-920 | T-MOBILE USA, INC. | 6529 | CHEYENNE | WY | |
| 309-208 | T-MOBILE USA, INC. | 6529 | PEORIA | IL | |
| 309-242 | T-MOBILE USA, INC. | 6529 | BLOOMINGTN | IL | |
| 309-261 | T-MOBILE USA, INC. | 6529 | BLOOMINGTN | IL | |
| 309-262 | T-MOBILE USA, INC. | 6529 | BLOOMINGTN | IL | |
| 309-269 | T-MOBILE USA, INC. | 6529 | ROCKISLAND | IL | |
| 309-275 | T-MOBILE USA, INC. | 6529 | BLOOMINGTN | IL | |
| 309-292 | T-MOBILE USA, INC. | 6529 | ROCKISLAND | IL | |
| 309-299 | T-MOBILE USA, INC. | 6529 | GALESBURG | IL | |
| 309-314 | T-MOBILE USA, INC. | 6529 | MOLINE | IL | |
| 309-453 | T-MOBILE USA, INC. | 6529 | PEORIA | IL | |
| 309-472 | T-MOBILE USA, INC. | 6529 | PEORIA | IL |
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.