npa-nxx | State | Company | OCN | Rate Center | CLLI | Assign Date | Misc |
312-276 | IL | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | CHICGOZN01 | CHCHILLEDS0 | 00/00/0000 | Prefix Type: CLEC Switch Name: CHICAGO ZONE Switch Type: WECO 5ESS (Digital) LATA: Chicago IL METRO (358) Tandem: N/A Detailed Switch Info |