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
217-595ILFRONTIER COMMUNICATIONS OF THE CAROLINAS, INC - IL (Frontier Communications)N/A1000PENFIELDPNFDILXCRS000/00/0000Prefix Type: ICO
Switch Name: PENFIELD
Switch Type: NTDMSRLM
LATA: Champaign IL (370)
Tandem: CHMPILCP51T
🔧 Explore Switch(CLLI: PNFDILXCRS0))
217-595 is split into 1,000-number blocks - detail below
217-595-5XXXILFRONTIER COMMUNICATIONS OF THE CAROLINAS, INC - IL (Frontier Communications)N/A1000PENFIELDPNFDILXCRS0N/APrefix Type: ICO
Switch Name: PENFIELD
Switch Type: NTDMSRLM
LATA: Champaign IL (370)
Tandem: CHMPILCP51T
🔧 Explore Switch(CLLI: PNFDILXCRS0))
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