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-nxxStateCompanyOCNRate CenterCLLIAssign DateMisc
815-682ILFRONTIER COMMUNICATIONS OF THE CAROLINAS, INC - IL (Frontier Communications)1000STOCKLANDSTLDILXARS100/00/0000Prefix Type: ICO
Switch Name: STOCKLAND
Switch Type: NTDMSRLC
LATA: Chicago IL METRO (358)
Tandem: LGRCILLG50T
Detailed Switch Info
Thousands block for 815-682
815-682-4ILFRONTIER COMMUNICATIONS OF THE CAROLINAS, INC - IL (Frontier Communications)1000STOCKLANDSTLDILXARS1N/APrefix Type: ICO
Switch Name: STOCKLAND
Switch Type: NTDMSRLC
LATA: Chicago IL METRO (358)
Tandem: LGRCILLG50T
Detailed Switch Info
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