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
281-523TXFRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS (Frontier Communications)4344KEMAHKEMHTXXBH0100/00/0000Prefix Type: RBOC
Switch Name: KEMAH LAKESHORE (ISDN)
Switch Type: RTDISC-S
LATA: Houston TX (560)
Tandem: DCSNTXXA01T
Detailed Switch Info
281-524TXFRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS (Frontier Communications)4344KEMAHKEMHTXXBH0100/00/0000Prefix Type: RBOC
Switch Name: KEMAH LAKESHORE (ISDN)
Switch Type: RTDISC-S
LATA: Houston TX (560)
Tandem: DCSNTXXA01T
Detailed Switch Info
Thousands block for 281-524
281-524-5TXFRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS (Frontier Communications)4344KEMAHKEMHTXXBH01N/APrefix Type: RBOC
Switch Name: KEMAH LAKESHORE (ISDN)
Switch Type: RTDISC-S
LATA: Houston TX (560)
Tandem: DCSNTXXA01T
Detailed Switch Info