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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🔎 Tip: Click any Company, OCN, Rate Center, or CLLI to explore related telecom data

npa-nxxStateCompanyFRNRMDOCNRate CenterCLLIAssign DateMisc
815-457ILFRONTIER COMMUNICATIONS OF THE CAROLINAS, INC - IL (Frontier Communications)N/A1000CISSNAPARKCSPKILXARS000/00/0000Prefix Type: ICO
Switch Name: CISSNA PARK
Switch Type: NTDMSRSC
LATA: Chicago IL METRO (358)
Tandem: LGRCILLG50T
🔧 Explore Switch(CLLI: CSPKILXARS0))
815-457 is split into 1,000-number blocks - detail below
815-457-2XXXILFRONTIER COMMUNICATIONS OF THE CAROLINAS, INC - IL (Frontier Communications)N/A1000CISSNAPARKCSPKILXARS0N/APrefix Type: ICO
Switch Name: CISSNA PARK
Switch Type: NTDMSRSC
LATA: Chicago IL METRO (358)
Tandem: LGRCILLG50T
🔧 Explore Switch(CLLI: CSPKILXARS0))
815-457-3XXXILFRONTIER COMMUNICATIONS OF THE CAROLINAS, INC - IL (Frontier Communications)N/A1000CISSNAPARKCSPKILXARS0N/APrefix Type: ICO
Switch Name: CISSNA PARK
Switch Type: NTDMSRSC
LATA: Chicago IL METRO (358)
Tandem: LGRCILLG50T
🔧 Explore Switch(CLLI: CSPKILXARS0))
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