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
586-727MIFRONTIER NORTH, INC. - MI (Frontier Communications)0695RICHMONDRCMDMIXGDS000/00/0000Prefix Type: ICO
Switch Name: RICHMOND
Switch Type: GTD5EAX
LATA: Detroit MI (340)
Tandem: TROYMIMN55T
Detailed Switch Info
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