Input a CLLI:

Tip: A Partial CLLI can be entered, but must contain a minimum of the first 6 characters. I.E. 'DLLSTX'

If you were a paid member, you could be loading this into any version of Excel or Access (or any other software that understands CSV) right now for less than you paid for your breakfast or lunch today. If you are a member please login to access this and other functionality.
npa-nxxStateCompanyOCNRate CenterCLLIAssign DateMisc
214-390TXFRONTIER SOUTHWEST INC DBA FRO (Verizon Communications)4344CARROLLTONCRTNTXXDDS000/00/0000Prefix Type: RBOC
Switch Name: CARROLLTON SE
Switch Type: GTD5EAX
LATA: Dallas TX (552)
Tandem: IRNGTXXB01T
Detailed Switch Info
Thousands block for 214-390
214-390-0TXFRONTIER SOUTHWEST INC DBA FRO (Verizon Communications)4344CARROLLTONCRTNTXXDDS0N/APrefix Type: RBOC
Switch Name: CARROLLTON SE
Switch Type: GTD5EAX
LATA: Dallas TX (552)
Tandem: IRNGTXXB01T
Detailed Switch Info
214-390-1TXFRONTIER SOUTHWEST INC DBA FRO (Verizon Communications)4344CARROLLTONCRTNTXXDDS0N/APrefix Type: RBOC
Switch Name: CARROLLTON SE
Switch Type: GTD5EAX
LATA: Dallas TX (552)
Tandem: IRNGTXXB01T
Detailed Switch Info
214-390-8TXFRONTIER SOUTHWEST INC DBA FRO (Verizon Communications)4344CARROLLTONCRTNTXXDDS0N/APrefix Type: RBOC
Switch Name: CARROLLTON SE
Switch Type: GTD5EAX
LATA: Dallas TX (552)
Tandem: IRNGTXXB01T
Detailed Switch Info
972-416TXFRONTIER SOUTHWEST INC DBA FRO (Verizon Communications)4344CARROLLTONCRTNTXXDDS000/00/0000Prefix Type: RBOC
Switch Name: CARROLLTON SE
Switch Type: GTD5EAX
LATA: Dallas TX (552)
Tandem: IRNGTXXB01T
Detailed Switch Info
972-417TXFRONTIER SOUTHWEST INC DBA FRO (Verizon Communications)4344CARROLLTONCRTNTXXDDS000/00/0000Prefix Type: RBOC
Switch Name: CARROLLTON SE
Switch Type: GTD5EAX
LATA: Dallas TX (552)
Tandem: IRNGTXXB01T
Detailed Switch Info
972-418TXFRONTIER SOUTHWEST INC DBA FRO (Verizon Communications)4344CARROLLTONCRTNTXXDDS000/00/0000Prefix Type: RBOC
Switch Name: CARROLLTON SE
Switch Type: GTD5EAX
LATA: Dallas TX (552)
Tandem: IRNGTXXB01T
Detailed Switch Info
972-478TXFRONTIER SOUTHWEST INC DBA FRO (Verizon Communications)4344CARROLLTONCRTNTXXDDS000/00/0000Prefix Type: RBOC
Switch Name: CARROLLTON SE
Switch Type: GTD5EAX
LATA: Dallas TX (552)
Tandem: IRNGTXXB01T
Detailed Switch Info
Thousands block for 972-478
972-478-2TXFRONTIER SOUTHWEST INC DBA FRO (Verizon Communications)4344CARROLLTONCRTNTXXDDS0N/APrefix Type: RBOC
Switch Name: CARROLLTON SE
Switch Type: GTD5EAX
LATA: Dallas TX (552)
Tandem: IRNGTXXB01T
Detailed Switch Info
972-478-3TXFRONTIER SOUTHWEST INC DBA FRO (Verizon Communications)4344CARROLLTONCRTNTXXDDS0N/APrefix Type: RBOC
Switch Name: CARROLLTON SE
Switch Type: GTD5EAX
LATA: Dallas TX (552)
Tandem: IRNGTXXB01T
Detailed Switch Info
972-478-4TXFRONTIER SOUTHWEST INC DBA FRO (Verizon Communications)4344CARROLLTONCRTNTXXDDS0N/APrefix Type: RBOC
Switch Name: CARROLLTON SE
Switch Type: GTD5EAX
LATA: Dallas TX (552)
Tandem: IRNGTXXB01T
Detailed Switch Info
972-478-5TXFRONTIER SOUTHWEST INC DBA FRO (Verizon Communications)4344CARROLLTONCRTNTXXDDS0N/APrefix Type: RBOC
Switch Name: CARROLLTON SE
Switch Type: GTD5EAX
LATA: Dallas TX (552)
Tandem: IRNGTXXB01T
Detailed Switch Info
972-478-6TXFRONTIER SOUTHWEST INC DBA FRO (Verizon Communications)4344CARROLLTONCRTNTXXDDS0N/APrefix Type: RBOC
Switch Name: CARROLLTON SE
Switch Type: GTD5EAX
LATA: Dallas TX (552)
Tandem: IRNGTXXB01T
Detailed Switch Info
972-478-7TXFRONTIER SOUTHWEST INC DBA FRO (Verizon Communications)4344CARROLLTONCRTNTXXDDS0N/APrefix Type: RBOC
Switch Name: CARROLLTON SE
Switch Type: GTD5EAX
LATA: Dallas TX (552)
Tandem: IRNGTXXB01T
Detailed Switch Info
972-478-8TXFRONTIER SOUTHWEST INC DBA FRO (Verizon Communications)4344CARROLLTONCRTNTXXDDS0N/APrefix Type: RBOC
Switch Name: CARROLLTON SE
Switch Type: GTD5EAX
LATA: Dallas TX (552)
Tandem: IRNGTXXB01T
Detailed Switch Info
972-478-9TXFRONTIER SOUTHWEST INC DBA FRO (Verizon Communications)4344CARROLLTONCRTNTXXDDS0N/APrefix Type: RBOC
Switch Name: CARROLLTON SE
Switch Type: GTD5EAX
LATA: Dallas TX (552)
Tandem: IRNGTXXB01T
Detailed Switch Info
Member of The Internet Defense League