npa-nxx | State | Company | OCN | Rate Center | CLLI | Assign Date | Misc |
773-549 | IL | ILLINOIS BELL TEL CO (AT&T) | 9329 | CHICGOZN04 | CHCGILLWDS1 | 00/00/0000 | Prefix Type: RBOC Switch Name: CHCG LAKEVIEW DS1 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE50T Detailed Switch Info |