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
972-441TXFRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS (Frontier Communications)2154WILMERWLMRTXXADS000/00/0000Prefix Type: RBOC
Switch Name: WILMER
Switch Type: SCDCO
LATA: Dallas TX (552)
Tandem: DLLSTXTA05T
Detailed Switch Info
Thousands block for 972-441
972-441-3TXFRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS (Frontier Communications)2154WILMERWLMRTXXADS0N/APrefix Type: RBOC
Switch Name: WILMER
Switch Type: SCDCO
LATA: Dallas TX (552)
Tandem: DLLSTXTA05T
Detailed Switch Info
972-441-6TXFRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS (Frontier Communications)2154WILMERWLMRTXXADS0N/APrefix Type: RBOC
Switch Name: WILMER
Switch Type: SCDCO
LATA: Dallas TX (552)
Tandem: DLLSTXTA05T
Detailed Switch Info
972-525TXFRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS (Frontier Communications)2154WILMERWLMRTXXADS000/00/0000Prefix Type: RBOC
Switch Name: WILMER
Switch Type: SCDCO
LATA: Dallas TX (552)
Tandem: DLLSTXTA05T
Detailed Switch Info
Thousands block for 972-525
972-525-3TXFRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS (Frontier Communications)2154WILMERWLMRTXXADS0N/APrefix Type: RBOC
Switch Name: WILMER
Switch Type: SCDCO
LATA: Dallas TX (552)
Tandem: DLLSTXTA05T
Detailed Switch Info
972-525-6TXFRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS (Frontier Communications)2154WILMERWLMRTXXADS0N/APrefix Type: RBOC
Switch Name: WILMER
Switch Type: SCDCO
LATA: Dallas TX (552)
Tandem: DLLSTXTA05T
Detailed Switch Info