LEVEL 3 COMMUNICATIONS, LLC - WY
27 prefixes in 307 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 307-200 | JACKSON | 9416 | 2002-08-16 | Yes |
| 307-201 | JACKSON | 9416 | 2003-01-07 | Yes |
| 307-205 | LINGLE | 9416 | 2016-11-16 | Yes |
| 307-212 | ROCK SPG | 9416 | 2002-07-16 | Yes |
| 307-213 | CODY | 9416 | 2002-07-16 | Yes |
| 307-222 | CHEYENNE | 9416 | — | Yes |
| 307-223 | LARAMIE | 9416 | — | Yes |
| 307-224 | CASPER | 9416 | — | Yes |
| 307-257 | GILLETTE | 9416 | 2004-05-19 | Yes |
| 307-269 | WHEATLAND | 9416 | — | Yes |
| 307-271 | POWELL | 9416 | 2004-05-26 | Yes |
| 307-278 | BUFFALO | 9416 | 2004-05-19 | Yes |
| 307-288 | EVANSTON | 9416 | 2004-05-19 | Yes |
| 307-298 | DOUGLAS | 9416 | 2004-05-19 | Yes |
| 307-313 | EVANSTON | 9416 | — | Yes |
| 307-323 | PINEDALE | 9416 | 2019-07-22 | Yes |
| 307-336 | DANIEL | 9416 | 2019-07-22 | Yes |
| 307-392 | BORDER | 9416 | 2006-06-21 | Yes |
| 307-416 | PINEDALE | 9416 | 2023-05-24 | Yes |
| 307-439 | CASPER | 9416 | — | Yes |
| 307-447 | SARATOGA | 9416 | 2015-10-08 | Yes |
| 307-456 | BIG PINEY | 9416 | 2019-07-22 | Yes |
| 307-459 | CHEYENNE | 9416 | 2002-06-11 | Yes |
| 307-460 | LARAMIE | 9416 | 2002-06-11 | Yes |
| 307-461 | SHERIDAN | 9416 | 2002-06-11 | Yes |
| 307-462 | CASPER | 9416 | 2002-06-11 | Yes |
| 307-463 | RIVERTON | 9416 | 2002-06-11 | Yes |
These are initial assignees from NANPA CO-code records — because of number portability, the current serving carrier of individual numbers may differ. Bulk export requires a membership.