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
530-738CAFRONTIER CALIFORNIA INC. (Frontier Communications)4420ROBBINSRBNSCAXGRS100/00/0000Prefix Type: ICO
Switch Name: ROBBINS
Switch Type: NTDMSRLC
LATA: Sacramento CA (726)
Tandem: SCRMCA0103T
Detailed Switch Info
Thousands block for 530-738
530-738-4CAFRONTIER CALIFORNIA INC. (Frontier Communications)4420ROBBINSRBNSCAXGRS1N/APrefix Type: ICO
Switch Name: ROBBINS
Switch Type: NTDMSRLC
LATA: Sacramento CA (726)
Tandem: SCRMCA0103T
Detailed Switch Info
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