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npa-nxxStateCompanyOCNRate CenterCLLIAssign DateMisc
972-960TXSOUTHWESTERN BELL9533DALLASDLLSTXADDS000/00/0000Prefix Type: RBOC
Switch Name: Addison DS0
Switch Type: Northern Telecom DMS100 (Digital) Host
LATA: Dallas TX (552)
Tandem: DLLSTXRI01T
Detailed Switch Info