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
928-857AZFRONTIER COMMUNICATIONS OF THE SOUTHWEST INC. - AZ (Frontier Communications)4419CIBOLACIBLAZXCRL000/00/0000Prefix Type: ICO
Switch Name: CIBOLA
Switch Type: SLC-5
LATA: Los Angeles CA (730)
Tandem: VTVLCAXA79T
Detailed Switch Info
Thousands block for 928-857
928-857-3AZFRONTIER COMMUNICATIONS OF THE SOUTHWEST INC. - AZ (Frontier Communications)4419CIBOLACIBLAZXCRL0N/APrefix Type: ICO
Switch Name: CIBOLA
Switch Type: SLC-5
LATA: Los Angeles CA (730)
Tandem: VTVLCAXA79T
Detailed Switch Info
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