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
618-651ILFRONTIER NORTH, INC. - IL (Verizon Communications)N/A1015HIGHLANDHGLDILXEDS000/00/0000Prefix Type: ICO
Switch Name: HIGHLAND
Switch Type: GTD5EAX
LATA: St.Louis MO (520)
Tandem: COVLILCQ50T
🔧 Explore Switch(CLLI: HGLDILXEDS0))
🕘 Prefix History
🔎 Explore Carrier Information
618-651 is split into 1,000-number blocks - detail below
618-651-0XXXILFRONTIER NORTH, INC. - IL (Verizon Communications)N/A1015HIGHLANDHGLDILXEDS0N/APrefix Type: ICO
Switch Name: HIGHLAND
Switch Type: GTD5EAX
LATA: St.Louis MO (520)
Tandem: COVLILCQ50T
🔧 Explore Switch(CLLI: HGLDILXEDS0))
🕘 Prefix History
🔎 Explore Carrier Information
618-651-1XXXILFRONTIER NORTH, INC. - IL (Verizon Communications)N/A1015HIGHLANDHGLDILXEDS0N/APrefix Type: ICO
Switch Name: HIGHLAND
Switch Type: GTD5EAX
LATA: St.Louis MO (520)
Tandem: COVLILCQ50T
🔧 Explore Switch(CLLI: HGLDILXEDS0))
🕘 Prefix History
🔎 Explore Carrier Information
618-651-2XXXILFRONTIER NORTH, INC. - IL (Verizon Communications)N/A1015HIGHLANDHGLDILXEDS0N/APrefix Type: ICO
Switch Name: HIGHLAND
Switch Type: GTD5EAX
LATA: St.Louis MO (520)
Tandem: COVLILCQ50T
🔧 Explore Switch(CLLI: HGLDILXEDS0))
🕘 Prefix History
🔎 Explore Carrier Information
618-651-3XXXILFRONTIER NORTH, INC. - IL (Verizon Communications)N/A1015HIGHLANDHGLDILXEDS0N/APrefix Type: ICO
Switch Name: HIGHLAND
Switch Type: GTD5EAX
LATA: St.Louis MO (520)
Tandem: COVLILCQ50T
🔧 Explore Switch(CLLI: HGLDILXEDS0))
🕘 Prefix History
🔎 Explore Carrier Information
618-651-8XXXILFRONTIER NORTH, INC. - IL (Verizon Communications)N/A1015HIGHLANDHGLDILXEDS0N/APrefix Type: ICO
Switch Name: HIGHLAND
Switch Type: GTD5EAX
LATA: St.Louis MO (520)
Tandem: COVLILCQ50T
🔧 Explore Switch(CLLI: HGLDILXEDS0))
🕘 Prefix History
🔎 Explore Carrier Information
618-651-9XXXILFRONTIER NORTH, INC. - IL (Verizon Communications)N/A1015HIGHLANDHGLDILXEDS0N/APrefix Type: ICO
Switch Name: HIGHLAND
Switch Type: GTD5EAX
LATA: St.Louis MO (520)
Tandem: COVLILCQ50T
🔧 Explore Switch(CLLI: HGLDILXEDS0))
🕘 Prefix History
🔎 Explore Carrier Information
618-654ILFRONTIER NORTH, INC. - IL (Verizon Communications)N/A1015HIGHLANDHGLDILXEDS000/00/0000Prefix Type: ICO
Switch Name: HIGHLAND
Switch Type: GTD5EAX
LATA: St.Louis MO (520)
Tandem: COVLILCQ50T
🔧 Explore Switch(CLLI: HGLDILXEDS0))
🕘 Prefix History
🔎 Explore Carrier Information
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