Input a CLLI:

Tip: A Partial CLLI can be entered, but must contain a minimum of the first 6 characters. I.E. 'DLLSTX'

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npa-nxxStateCompanyFRNRMDOCNRate CenterCLLIAssign DateMisc
217-453ILCITIZENS TELECOM CO ILLINOIS-FRONTIER CITIZENS -IL (Frontier Communications)N/A1183NAUVOONAUVILXCRS000/00/0000Prefix Type: ICO
Switch Name: NAUVOO
Switch Type: Stromberg Carlson DCO RLS
LATA: Macomb IL (977)
Tandem: N/A
Detailed Switch Info
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