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npa-nxxStateCompanyOCNRate CenterCLLIAssign DateMisc
312-397ILILLINOIS BELL TEL CO (AT&T)9329CHICGOZN01CHCGILSUDS200/00/0000Prefix Type: RBOC
Switch Name: CHCG SUPERIOR DS2
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: CHCGILID71T
Detailed Switch Info
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