npa-nxx | State | Company | OCN | Rate Center | CLLI | Assign Date | Misc |
312-643 | IL | RCN TELECOM SERVICES OF ILLINIOS, INC. - IL | 8702 | CHICGOZN01 | CHCGILACGT0 | 00/00/0000 | Prefix Type: CLEC Switch Name: N/A Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A Detailed Switch Info |