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npa-nxxStateCompanyOCNRate CenterCLLIAssign DateMisc
773-210ILILLINOIS BELL TEL CO (AT&T)9329CHICGOZN01CHCGILWB50T00/00/0000Prefix Type: RBOC
Switch Name: CHCZ 1
Switch Type: Northern Telecom DMS200 (Digital) Host
LATA: Chicago IL METRO (358)
Tandem: N/A
Detailed Switch Info
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