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
940-242TXFRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS (Frontier Communications)4344JUSTINJSTNTXXBRS100/00/0000Prefix Type: RBOC
Switch Name: JUSTIN
Switch Type: NTDMSRSC
LATA: Dallas TX (552)
Tandem: DNTNTXXA04T
Detailed Switch Info
Thousands block for 940-242
940-242-0TXFRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS (Frontier Communications)4344JUSTINJSTNTXXBRS1N/APrefix Type: RBOC
Switch Name: JUSTIN
Switch Type: NTDMSRSC
LATA: Dallas TX (552)
Tandem: DNTNTXXA04T
Detailed Switch Info
940-526TXFRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS (Frontier Communications)4344JUSTINJSTNTXXBRS111/08/2022Prefix Type: RBOC
Switch Name: JUSTIN
Switch Type: NTDMSRSC
LATA: Dallas TX (552)
Tandem: DNTNTXXA04T
Detailed Switch Info
Thousands block for 940-526
940-526-0TXFRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS (Frontier Communications)4344JUSTINJSTNTXXBRS111/08/2022Prefix Type: RBOC
Switch Name: JUSTIN
Switch Type: NTDMSRSC
LATA: Dallas TX (552)
Tandem: DNTNTXXA04T
Detailed Switch Info
940-526-4TXFRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS (Frontier Communications)4344JUSTINJSTNTXXBRS103/04/2024Prefix Type: RBOC
Switch Name: JUSTIN
Switch Type: NTDMSRSC
LATA: Dallas TX (552)
Tandem: DNTNTXXA04T
Detailed Switch Info
940-648TXFRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS (Frontier Communications)4344JUSTINJSTNTXXBRS100/00/0000Prefix Type: RBOC
Switch Name: JUSTIN
Switch Type: NTDMSRSC
LATA: Dallas TX (552)
Tandem: DNTNTXXA04T
Detailed Switch Info
Thousands block for 940-648
940-648-0TXFRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS (Frontier Communications)4344JUSTINJSTNTXXBRS1N/APrefix Type: RBOC
Switch Name: JUSTIN
Switch Type: NTDMSRSC
LATA: Dallas TX (552)
Tandem: DNTNTXXA04T
Detailed Switch Info
940-648-1TXFRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS (Frontier Communications)4344JUSTINJSTNTXXBRS1N/APrefix Type: RBOC
Switch Name: JUSTIN
Switch Type: NTDMSRSC
LATA: Dallas TX (552)
Tandem: DNTNTXXA04T
Detailed Switch Info
940-648-2TXFRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS (Frontier Communications)4344JUSTINJSTNTXXBRS1N/APrefix Type: RBOC
Switch Name: JUSTIN
Switch Type: NTDMSRSC
LATA: Dallas TX (552)
Tandem: DNTNTXXA04T
Detailed Switch Info
940-648-3TXFRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS (Frontier Communications)4344JUSTINJSTNTXXBRS1N/APrefix Type: RBOC
Switch Name: JUSTIN
Switch Type: NTDMSRSC
LATA: Dallas TX (552)
Tandem: DNTNTXXA04T
Detailed Switch Info
940-648-5TXFRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS (Frontier Communications)4344JUSTINJSTNTXXBRS1N/APrefix Type: RBOC
Switch Name: JUSTIN
Switch Type: NTDMSRSC
LATA: Dallas TX (552)
Tandem: DNTNTXXA04T
Detailed Switch Info
940-648-8TXFRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS (Frontier Communications)4344JUSTINJSTNTXXBRS1N/APrefix Type: RBOC
Switch Name: JUSTIN
Switch Type: NTDMSRSC
LATA: Dallas TX (552)
Tandem: DNTNTXXA04T
Detailed Switch Info
940-648-9TXFRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS (Frontier Communications)4344JUSTINJSTNTXXBRS1N/APrefix Type: RBOC
Switch Name: JUSTIN
Switch Type: NTDMSRSC
LATA: Dallas TX (552)
Tandem: DNTNTXXA04T
Detailed Switch Info
Thousands block for 940-946
940-946-4TXFRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS (Frontier Communications)4344JUSTINJSTNTXXBRS108/08/2022Prefix Type: RBOC
Switch Name: JUSTIN
Switch Type: NTDMSRSC
LATA: Dallas TX (552)
Tandem: DNTNTXXA04T
Detailed Switch Info
940-946-8TXFRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS (Frontier Communications)4344JUSTINJSTNTXXBRS108/16/2021Prefix Type: RBOC
Switch Name: JUSTIN
Switch Type: NTDMSRSC
LATA: Dallas TX (552)
Tandem: DNTNTXXA04T
Detailed Switch Info
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