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
409-978TXFRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS (Frontier Communications)4344HTCHCCKSNFHTCHTXXADS000/00/0000Prefix Type: RBOC
Switch Name: HITCHCOCK
Switch Type: GTD5EAX
LATA: Houston TX (560)
Tandem: DCSNTXXA01T
Detailed Switch Info
Thousands block for 409-978
409-978-2TXFRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS (Frontier Communications)4344HTCHCCKSNFHTCHTXXADS0N/APrefix Type: RBOC
Switch Name: HITCHCOCK
Switch Type: GTD5EAX
LATA: Houston TX (560)
Tandem: DCSNTXXA01T
Detailed Switch Info
409-986TXFRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS (Frontier Communications)4344HTCHCCKSNFHTCHTXXADS000/00/0000Prefix Type: RBOC
Switch Name: HITCHCOCK
Switch Type: GTD5EAX
LATA: Houston TX (560)
Tandem: DCSNTXXA01T
Detailed Switch Info