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
251-577ALFRONTIER COMMUNICATIONS OF THE SOUTH, LLC - AL (Frontier Communications)4464MCCULLOUGHMCCLALXARS000/00/0000Prefix Type: ICO
Switch Name: MCCULLOUGH
Switch Type: Stromberg Carlson DCO RLS
LATA: Mobile AL (480)
Tandem: N/A
Detailed Switch Info
Thousands block for 251-577
251-577-6ALFRONTIER COMMUNICATIONS OF THE SOUTH, LLC - AL (Frontier Communications)4464MCCULLOUGHMCCLALXARS0N/APrefix Type: ICO
Switch Name: MCCULLOUGH
Switch Type: Stromberg Carlson DCO RLS
LATA: Mobile AL (480)
Tandem: N/A
Detailed Switch Info
251-577-9ALFRONTIER COMMUNICATIONS OF THE SOUTH, LLC - AL (Frontier Communications)4464MCCULLOUGHMCCLALXARS0N/APrefix Type: ICO
Switch Name: MCCULLOUGH
Switch Type: Stromberg Carlson DCO RLS
LATA: Mobile AL (480)
Tandem: N/A
Detailed Switch Info
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