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
469-359TXFRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS (Frontier Communications)4344IRVINGIRNGTXXBPSA10/19/2007Prefix Type: RBOC
Switch Name: IRVING (PSA)
Switch Type: NTDMS100
LATA: Dallas TX (552)
Tandem: IRNGTXXB01T
Detailed Switch Info
Thousands block for 469-359
469-359-9TXFRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS (Frontier Communications)4344IRVINGIRNGTXXBPSA10/19/2007Prefix Type: RBOC
Switch Name: IRVING (PSA)
Switch Type: NTDMS100
LATA: Dallas TX (552)
Tandem: IRNGTXXB01T
Detailed Switch Info
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