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
214-731TXFRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS (Frontier Communications)4344CARROLLTONCRTNTXXBDS000/00/0000Prefix Type: RBOC
Switch Name: CARROLLTON NORTH
Switch Type: GTD5EAX
LATA: Dallas TX (552)
Tandem: IRNGTXXB01T
Detailed Switch Info
Thousands block for 214-731
214-731-0TXFRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS (Frontier Communications)4344CARROLLTONCRTNTXXBDS0N/APrefix Type: RBOC
Switch Name: CARROLLTON NORTH
Switch Type: GTD5EAX
LATA: Dallas TX (552)
Tandem: IRNGTXXB01T
Detailed Switch Info
214-731-1TXFRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS (Frontier Communications)4344CARROLLTONCRTNTXXBDS0N/APrefix Type: RBOC
Switch Name: CARROLLTON NORTH
Switch Type: GTD5EAX
LATA: Dallas TX (552)
Tandem: IRNGTXXB01T
Detailed Switch Info
214-731-2TXFRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS (Frontier Communications)4344CARROLLTONCRTNTXXBDS0N/APrefix Type: RBOC
Switch Name: CARROLLTON NORTH
Switch Type: GTD5EAX
LATA: Dallas TX (552)
Tandem: IRNGTXXB01T
Detailed Switch Info
214-731-8TXFRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS (Frontier Communications)4344CARROLLTONCRTNTXXBDS0N/APrefix Type: RBOC
Switch Name: CARROLLTON NORTH
Switch Type: GTD5EAX
LATA: Dallas TX (552)
Tandem: IRNGTXXB01T
Detailed Switch Info
214-731-9TXFRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS (Frontier Communications)4344CARROLLTONCRTNTXXBDS0N/APrefix Type: RBOC
Switch Name: CARROLLTON NORTH
Switch Type: GTD5EAX
LATA: Dallas TX (552)
Tandem: IRNGTXXB01T
Detailed Switch Info
972-394TXFRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS (Frontier Communications)4344CARROLLTONCRTNTXXBDS000/00/0000Prefix Type: RBOC
Switch Name: CARROLLTON NORTH
Switch Type: GTD5EAX
LATA: Dallas TX (552)
Tandem: IRNGTXXB01T
Detailed Switch Info
972-395TXFRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS (Frontier Communications)4344CARROLLTONCRTNTXXBDS000/00/0000Prefix Type: RBOC
Switch Name: CARROLLTON NORTH
Switch Type: GTD5EAX
LATA: Dallas TX (552)
Tandem: IRNGTXXB01T
Detailed Switch Info
Thousands block for 972-395
972-395-0TXFRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS (Frontier Communications)4344CARROLLTONCRTNTXXBDS0N/APrefix Type: RBOC
Switch Name: CARROLLTON NORTH
Switch Type: GTD5EAX
LATA: Dallas TX (552)
Tandem: IRNGTXXB01T
Detailed Switch Info
972-395-1TXFRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS (Frontier Communications)4344CARROLLTONCRTNTXXBDS0N/APrefix Type: RBOC
Switch Name: CARROLLTON NORTH
Switch Type: GTD5EAX
LATA: Dallas TX (552)
Tandem: IRNGTXXB01T
Detailed Switch Info
972-395-2TXFRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS (Frontier Communications)4344CARROLLTONCRTNTXXBDS0N/APrefix Type: RBOC
Switch Name: CARROLLTON NORTH
Switch Type: GTD5EAX
LATA: Dallas TX (552)
Tandem: IRNGTXXB01T
Detailed Switch Info
972-395-3TXFRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS (Frontier Communications)4344CARROLLTONCRTNTXXBDS0N/APrefix Type: RBOC
Switch Name: CARROLLTON NORTH
Switch Type: GTD5EAX
LATA: Dallas TX (552)
Tandem: IRNGTXXB01T
Detailed Switch Info
972-395-4TXFRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS (Frontier Communications)4344CARROLLTONCRTNTXXBDS0N/APrefix Type: RBOC
Switch Name: CARROLLTON NORTH
Switch Type: GTD5EAX
LATA: Dallas TX (552)
Tandem: IRNGTXXB01T
Detailed Switch Info
972-395-7TXFRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS (Frontier Communications)4344CARROLLTONCRTNTXXBDS0N/APrefix Type: RBOC
Switch Name: CARROLLTON NORTH
Switch Type: GTD5EAX
LATA: Dallas TX (552)
Tandem: IRNGTXXB01T
Detailed Switch Info
972-395-8TXFRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS (Frontier Communications)4344CARROLLTONCRTNTXXBDS0N/APrefix Type: RBOC
Switch Name: CARROLLTON NORTH
Switch Type: GTD5EAX
LATA: Dallas TX (552)
Tandem: IRNGTXXB01T
Detailed Switch Info
972-395-9TXFRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS (Frontier Communications)4344CARROLLTONCRTNTXXBDS0N/APrefix Type: RBOC
Switch Name: CARROLLTON NORTH
Switch Type: GTD5EAX
LATA: Dallas TX (552)
Tandem: IRNGTXXB01T
Detailed Switch Info
972-492TXFRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS (Frontier Communications)4344CARROLLTONCRTNTXXBDS000/00/0000Prefix Type: RBOC
Switch Name: CARROLLTON NORTH
Switch Type: GTD5EAX
LATA: Dallas TX (552)
Tandem: IRNGTXXB01T
Detailed Switch Info
972-939TXFRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS (Frontier Communications)4344CARROLLTONCRTNTXXBDS000/00/0000Prefix Type: RBOC
Switch Name: CARROLLTON NORTH
Switch Type: GTD5EAX
LATA: Dallas TX (552)
Tandem: IRNGTXXB01T
Detailed Switch Info