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npa-nxxStateCompanyOCNRate CenterCLLIAssign DateMisc
773-489ILILLINOIS BELL TEL CO (AT&T)9329CHICGOZN04CHCGILHBDS100/00/0000Prefix Type: RBOC
Switch Name: CHCG HUMBOLDT DS1
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: CHCGILWB55T
Detailed Switch Info