LEVEL 3 COMMUNICATIONS, LLC - OK
22 prefixes in 405 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 405-308 | OKLA CITY | 5257 | 2001-07-26 | Yes |
| 405-334 | STILLWATER | 5257 | 2001-08-17 | Yes |
| 405-428 | LINDSAY | 5257 | 2004-05-04 | Yes |
| 405-445 | OKLA CITY | 5257 | 2006-02-09 | Yes |
| 405-543 | OKLA CITY | 5257 | — | Yes |
| 405-563 | OKLA CITY | 5257 | 2008-01-03 | Yes |
| 405-571 | STILLWATER | 5257 | — | Yes |
| 405-581 | EARLSBORO | 5257 | 2016-09-01 | Yes |
| 405-588 | CHANDLER | 5257 | 2002-05-09 | Yes |
| 405-592 | HOLDENVL | 5257 | 2002-05-29 | Yes |
| 405-597 | BLANCHARD | 5257 | 2019-02-14 | Yes |
| 405-648 | ANADARKO | 5257 | 2002-05-22 | Yes |
| 405-716 | SEMINOLE | 5257 | 2002-05-29 | Yes |
| 405-718 | NEWALLA | 5257 | 2017-08-22 | Yes |
| 405-758 | OKLA CITY | 5257 | 2012-02-22 | Yes |
| 405-846 | TRIBBEY | 5257 | 2020-02-18 | Yes |
| 405-852 | NEWCASTLE | 5257 | 2019-02-14 | Yes |
| 405-888 | EDMOND | 5257 | — | Yes |
| 405-890 | STELLA | 5257 | 2020-02-20 | Yes |
| 405-894 | STILLWATER | 5257 | 2018-06-25 | Yes |
| 405-903 | DIBBLE | 5257 | 2019-02-14 | Yes |
| 405-988 | MCLOUD | 5257 | 2017-08-22 | 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.