TELEPORT COMMUNICATIONS AMERICA, LLC - IL
23 prefixes in 773 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 773-204 | CHICGOZN07 | 7136 | 2025-04-30 | Yes |
| 773-253 | CHICGOZN10 | 7136 | — | Yes |
| 773-269 | CHICGOZN04 | 7136 | — | Yes |
| 773-306 | CHICGOZN08 | 7136 | — | Yes |
| 773-329 | CHICGOZN03 | 7136 | — | Yes |
| 773-377 | CHICGOZN11 | 7136 | — | Yes |
| 773-409 | CHICGOZN02 | 7136 | — | Yes |
| 773-413 | CHICGOZN05 | 7136 | — | Yes |
| 773-420 | CHICGOZN07 | 7136 | — | Yes |
| 773-424 | CHICGOZN08 | 7136 | — | Yes |
| 773-437 | CHICGOZN09 | 7136 | — | Yes |
| 773-475 | CHICGOZN06 | 7136 | — | Yes |
| 773-498 | CHICGOZN08 | 7136 | — | Yes |
| 773-560 | CHICGOZN06 | 7136 | 2021-12-15 | Yes |
| 773-564 | CHICGOZN02 | 7136 | — | Yes |
| 773-628 | CHICGOZN03 | 7136 | — | Yes |
| 773-644 | CHICGOZN02 | 7136 | 2011-01-05 | Yes |
| 773-676 | CHICGOZN05 | 7136 | — | Yes |
| 773-687 | CHICGOZN04 | 7136 | — | Yes |
| 773-757 | CHICGOZN08 | 7136 | 2001-06-28 | Yes |
| 773-765 | CHICGOZN02 | 7136 | — | Yes |
| 773-823 | CHICGOZN06 | 7136 | — | Yes |
| 773-824 | CHICGOZN03 | 7136 | — | 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.