LEVEL 3 COMMUNICATIONS, LLC - IL
36 prefixes in 773 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 773-231 | CHICGOZN07 | 6115 | 2011-09-08 | Yes |
| 773-249 | CHICGOZN11 | 6115 | — | Yes |
| 773-290 | CHICGOZN02 | 6115 | — | Yes |
| 773-321 | CHICGOZN06 | 6115 | — | Yes |
| 773-326 | CHICGOZN07 | 6115 | — | Yes |
| 773-353 | CHICGOZN03 | 6115 | — | Yes |
| 773-360 | CHICGOZN04 | 6115 | — | Yes |
| 773-446 | CHICGOZN06 | 6115 | — | Yes |
| 773-524 | CHICGOZN04 | 6115 | — | Yes |
| 773-527 | CHICGOZN03 | 6115 | — | Yes |
| 773-541 | CHICGOZN02 | 6115 | — | Yes |
| 773-570 | CHICGOZN11 | 6115 | — | Yes |
| 773-572 | CHICGOZN04 | 6115 | — | Yes |
| 773-635 | CHICGOZN06 | 6115 | — | Yes |
| 773-668 | CHICGOZN05 | 6115 | 2006-04-27 | Yes |
| 773-790 | CHICGOZN03 | 6115 | — | Yes |
| 773-796 | CHICGOZN02 | 6115 | 2010-11-01 | Yes |
| 773-797 | CHICGOZN05 | 6115 | — | Yes |
| 773-800 | CHICGOZN02 | 6115 | 2009-06-25 | Yes |
| 773-828 | CHICGOZN02 | 6115 | — | Yes |
| 773-829 | CHICGOZN04 | 6115 | — | Yes |
| 773-831 | CHICGOZN11 | 6115 | — | Yes |
| 773-902 | CHICGOZN09 | 6115 | — | Yes |
| 773-904 | CHICGOZN04 | 6115 | 2008-05-12 | Yes |
| 773-905 | CHICGOZN10 | 6115 | — | Yes |
| 773-906 | CHICGOZN11 | 6115 | — | Yes |
| 773-912 | CHICGOZN08 | 6115 | — | Yes |
| 773-913 | CHICGOZN09 | 6115 | — | Yes |
| 773-915 | CHICGOZN07 | 6115 | — | Yes |
| 773-920 | CHICGOZN06 | 6115 | — | Yes |
| 773-922 | CHICGOZN05 | 6115 | — | Yes |
| 773-932 | CHICGOZN03 | 6115 | — | Yes |
| 773-938 | CHICGOZN04 | 6115 | — | Yes |
| 773-942 | CHICGOZN02 | 6115 | — | Yes |
| 773-946 | CHICGOZN10 | 6115 | 2007-05-22 | Yes |
| 773-966 | CHICGOZN07 | 6115 | 2006-04-27 | 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.