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
217-351ILILLINOIS BELL TEL CO (AT&T)N/A9329CHAMPAURBNCHMPILCPDS000/00/0000Prefix Type: RBOC
Switch Name: CHAMPAIGN MAIN DS0
Switch Type: DMS1/2
LATA: Champaign IL (370)
Tandem: CHMPILCP51T
🔧 Explore Switch(CLLI: CHMPILCPDS0))
217-352ILILLINOIS BELL TEL CO (AT&T)N/A9329CHAMPAURBNCHMPILCPDS000/00/0000Prefix Type: RBOC
Switch Name: CHAMPAIGN MAIN DS0
Switch Type: DMS1/2
LATA: Champaign IL (370)
Tandem: CHMPILCP51T
🔧 Explore Switch(CLLI: CHMPILCPDS0))
217-353ILILLINOIS BELL TEL CO (AT&T)N/A9329CHAMPAURBNCHMPILCPDS000/00/0000Prefix Type: RBOC
Switch Name: CHAMPAIGN MAIN DS0
Switch Type: DMS1/2
LATA: Champaign IL (370)
Tandem: CHMPILCP51T
🔧 Explore Switch(CLLI: CHMPILCPDS0))
217-355ILILLINOIS BELL TEL CO (AT&T)N/A9329CHAMPAURBNCHMPILCPDS000/00/0000Prefix Type: RBOC
Switch Name: CHAMPAIGN MAIN DS0
Switch Type: DMS1/2
LATA: Champaign IL (370)
Tandem: CHMPILCP51T
🔧 Explore Switch(CLLI: CHMPILCPDS0))
217-356ILILLINOIS BELL TEL CO (AT&T)N/A9329CHAMPAURBNCHMPILCPDS000/00/0000Prefix Type: RBOC
Switch Name: CHAMPAIGN MAIN DS0
Switch Type: DMS1/2
LATA: Champaign IL (370)
Tandem: CHMPILCP51T
🔧 Explore Switch(CLLI: CHMPILCPDS0))
217-359ILILLINOIS BELL TEL CO (AT&T)N/A9329CHAMPAURBNCHMPILCPDS000/00/0000Prefix Type: RBOC
Switch Name: CHAMPAIGN MAIN DS0
Switch Type: DMS1/2
LATA: Champaign IL (370)
Tandem: CHMPILCP51T
🔧 Explore Switch(CLLI: CHMPILCPDS0))
217-363ILILLINOIS BELL TEL CO (AT&T)N/A9329CHAMPAURBNCHMPILCPDS000/00/0000Prefix Type: RBOC
Switch Name: CHAMPAIGN MAIN DS0
Switch Type: DMS1/2
LATA: Champaign IL (370)
Tandem: CHMPILCP51T
🔧 Explore Switch(CLLI: CHMPILCPDS0))
217-363 is split into 1,000-number blocks - detail below
217-363-0XXXILILLINOIS BELL TEL CO (AT&T)N/A9329CHAMPAURBNCHMPILCPDS0N/APrefix Type: RBOC
Switch Name: CHAMPAIGN MAIN DS0
Switch Type: DMS1/2
LATA: Champaign IL (370)
Tandem: CHMPILCP51T
🔧 Explore Switch(CLLI: CHMPILCPDS0))
217-363-1XXXILILLINOIS BELL TEL CO (AT&T)N/A9329CHAMPAURBNCHMPILCPDS0N/APrefix Type: RBOC
Switch Name: CHAMPAIGN MAIN DS0
Switch Type: DMS1/2
LATA: Champaign IL (370)
Tandem: CHMPILCP51T
🔧 Explore Switch(CLLI: CHMPILCPDS0))
217-363-2XXXILILLINOIS BELL TEL CO (AT&T)N/A9329CHAMPAURBNCHMPILCPDS0N/APrefix Type: RBOC
Switch Name: CHAMPAIGN MAIN DS0
Switch Type: DMS1/2
LATA: Champaign IL (370)
Tandem: CHMPILCP51T
🔧 Explore Switch(CLLI: CHMPILCPDS0))
217-363-3XXXILILLINOIS BELL TEL CO (AT&T)N/A9329CHAMPAURBNCHMPILCPDS0N/APrefix Type: RBOC
Switch Name: CHAMPAIGN MAIN DS0
Switch Type: DMS1/2
LATA: Champaign IL (370)
Tandem: CHMPILCP51T
🔧 Explore Switch(CLLI: CHMPILCPDS0))
217-363-4XXXILILLINOIS BELL TEL CO (AT&T)N/A9329CHAMPAURBNCHMPILCPDS0N/APrefix Type: RBOC
Switch Name: CHAMPAIGN MAIN DS0
Switch Type: DMS1/2
LATA: Champaign IL (370)
Tandem: CHMPILCP51T
🔧 Explore Switch(CLLI: CHMPILCPDS0))
217-363-5XXXILILLINOIS BELL TEL CO (AT&T)N/A9329CHAMPAURBNCHMPILCPDS0N/APrefix Type: RBOC
Switch Name: CHAMPAIGN MAIN DS0
Switch Type: DMS1/2
LATA: Champaign IL (370)
Tandem: CHMPILCP51T
🔧 Explore Switch(CLLI: CHMPILCPDS0))
217-363-6XXXILILLINOIS BELL TEL CO (AT&T)N/A9329CHAMPAURBNCHMPILCPDS0N/APrefix Type: RBOC
Switch Name: CHAMPAIGN MAIN DS0
Switch Type: DMS1/2
LATA: Champaign IL (370)
Tandem: CHMPILCP51T
🔧 Explore Switch(CLLI: CHMPILCPDS0))
217-363-8XXXILILLINOIS BELL TEL CO (AT&T)N/A9329CHAMPAURBNCHMPILCPDS0N/APrefix Type: RBOC
Switch Name: CHAMPAIGN MAIN DS0
Switch Type: DMS1/2
LATA: Champaign IL (370)
Tandem: CHMPILCP51T
🔧 Explore Switch(CLLI: CHMPILCPDS0))
217-363-9XXXILILLINOIS BELL TEL CO (AT&T)N/A9329CHAMPAURBNCHMPILCPDS0N/APrefix Type: RBOC
Switch Name: CHAMPAIGN MAIN DS0
Switch Type: DMS1/2
LATA: Champaign IL (370)
Tandem: CHMPILCP51T
🔧 Explore Switch(CLLI: CHMPILCPDS0))
217-366ILILLINOIS BELL TEL CO (AT&T)N/A9329CHAMPAURBNCHMPILCPDS000/00/0000Prefix Type: RBOC
Switch Name: CHAMPAIGN MAIN DS0
Switch Type: DMS1/2
LATA: Champaign IL (370)
Tandem: CHMPILCP51T
🔧 Explore Switch(CLLI: CHMPILCPDS0))
217-372ILILLINOIS BELL TEL CO (AT&T)N/A9329CHAMPAURBNCHMPILCPDS000/00/0000Prefix Type: RBOC
Switch Name: CHAMPAIGN MAIN DS0
Switch Type: DMS1/2
LATA: Champaign IL (370)
Tandem: CHMPILCP51T
🔧 Explore Switch(CLLI: CHMPILCPDS0))
217-372 is split into 1,000-number blocks - detail below
217-372-2XXXILILLINOIS BELL TEL CO (AT&T)N/A9329CHAMPAURBNCHMPILCPDS0N/APrefix Type: RBOC
Switch Name: CHAMPAIGN MAIN DS0
Switch Type: DMS1/2
LATA: Champaign IL (370)
Tandem: CHMPILCP51T
🔧 Explore Switch(CLLI: CHMPILCPDS0))
217-372-3XXXILILLINOIS BELL TEL CO (AT&T)N/A9329CHAMPAURBNCHMPILCPDS0N/APrefix Type: RBOC
Switch Name: CHAMPAIGN MAIN DS0
Switch Type: DMS1/2
LATA: Champaign IL (370)
Tandem: CHMPILCP51T
🔧 Explore Switch(CLLI: CHMPILCPDS0))
217-373ILILLINOIS BELL TEL CO (AT&T)N/A9329CHAMPAURBNCHMPILCPDS000/00/0000Prefix Type: RBOC
Switch Name: CHAMPAIGN MAIN DS0
Switch Type: DMS1/2
LATA: Champaign IL (370)
Tandem: CHMPILCP51T
🔧 Explore Switch(CLLI: CHMPILCPDS0))
217-378ILILLINOIS BELL TEL CO (AT&T)N/A9329CHAMPAURBNCHMPILCPDS000/00/0000Prefix Type: RBOC
Switch Name: CHAMPAIGN MAIN DS0
Switch Type: DMS1/2
LATA: Champaign IL (370)
Tandem: CHMPILCP51T
🔧 Explore Switch(CLLI: CHMPILCPDS0))
217-398ILILLINOIS BELL TEL CO (AT&T)N/A9329CHAMPAURBNCHMPILCPDS000/00/0000Prefix Type: RBOC
Switch Name: CHAMPAIGN MAIN DS0
Switch Type: DMS1/2
LATA: Champaign IL (370)
Tandem: CHMPILCP51T
🔧 Explore Switch(CLLI: CHMPILCPDS0))
217-403ILILLINOIS BELL TEL CO (AT&T)N/A9329CHAMPAURBNCHMPILCPDS000/00/0000Prefix Type: RBOC
Switch Name: CHAMPAIGN MAIN DS0
Switch Type: DMS1/2
LATA: Champaign IL (370)
Tandem: CHMPILCP51T
🔧 Explore Switch(CLLI: CHMPILCPDS0))
217-403 is split into 1,000-number blocks - detail below
217-403-0XXXILILLINOIS BELL TEL CO (AT&T)N/A9329CHAMPAURBNCHMPILCPDS0N/APrefix Type: RBOC
Switch Name: CHAMPAIGN MAIN DS0
Switch Type: DMS1/2
LATA: Champaign IL (370)
Tandem: CHMPILCP51T
🔧 Explore Switch(CLLI: CHMPILCPDS0))
217-403-1XXXILILLINOIS BELL TEL CO (AT&T)N/A9329CHAMPAURBNCHMPILCPDS0N/APrefix Type: RBOC
Switch Name: CHAMPAIGN MAIN DS0
Switch Type: DMS1/2
LATA: Champaign IL (370)
Tandem: CHMPILCP51T
🔧 Explore Switch(CLLI: CHMPILCPDS0))
217-403-2XXXILILLINOIS BELL TEL CO (AT&T)N/A9329CHAMPAURBNCHMPILCPDS0N/APrefix Type: RBOC
Switch Name: CHAMPAIGN MAIN DS0
Switch Type: DMS1/2
LATA: Champaign IL (370)
Tandem: CHMPILCP51T
🔧 Explore Switch(CLLI: CHMPILCPDS0))
217-403-3XXXILILLINOIS BELL TEL CO (AT&T)N/A9329CHAMPAURBNCHMPILCPDS0N/APrefix Type: RBOC
Switch Name: CHAMPAIGN MAIN DS0
Switch Type: DMS1/2
LATA: Champaign IL (370)
Tandem: CHMPILCP51T
🔧 Explore Switch(CLLI: CHMPILCPDS0))
217-403-4XXXILILLINOIS BELL TEL CO (AT&T)N/A9329CHAMPAURBNCHMPILCPDS0N/APrefix Type: RBOC
Switch Name: CHAMPAIGN MAIN DS0
Switch Type: DMS1/2
LATA: Champaign IL (370)
Tandem: CHMPILCP51T
🔧 Explore Switch(CLLI: CHMPILCPDS0))
217-403-5XXXILILLINOIS BELL TEL CO (AT&T)N/A9329CHAMPAURBNCHMPILCPDS0N/APrefix Type: RBOC
Switch Name: CHAMPAIGN MAIN DS0
Switch Type: DMS1/2
LATA: Champaign IL (370)
Tandem: CHMPILCP51T
🔧 Explore Switch(CLLI: CHMPILCPDS0))
217-403-6XXXILILLINOIS BELL TEL CO (AT&T)N/A9329CHAMPAURBNCHMPILCPDS0N/APrefix Type: RBOC
Switch Name: CHAMPAIGN MAIN DS0
Switch Type: DMS1/2
LATA: Champaign IL (370)
Tandem: CHMPILCP51T
🔧 Explore Switch(CLLI: CHMPILCPDS0))
217-403-7XXXILILLINOIS BELL TEL CO (AT&T)N/A9329CHAMPAURBNCHMPILCPDS0N/APrefix Type: RBOC
Switch Name: CHAMPAIGN MAIN DS0
Switch Type: DMS1/2
LATA: Champaign IL (370)
Tandem: CHMPILCP51T
🔧 Explore Switch(CLLI: CHMPILCPDS0))
217-403-8XXXILILLINOIS BELL TEL CO (AT&T)N/A9329CHAMPAURBNCHMPILCPDS0N/APrefix Type: RBOC
Switch Name: CHAMPAIGN MAIN DS0
Switch Type: DMS1/2
LATA: Champaign IL (370)
Tandem: CHMPILCP51T
🔧 Explore Switch(CLLI: CHMPILCPDS0))
217-591ILILLINOIS BELL TEL CO (AT&T)N/A9329CHAMPAURBNCHMPILCPDS000/00/0000Prefix Type: RBOC
Switch Name: CHAMPAIGN MAIN DS0
Switch Type: DMS1/2
LATA: Champaign IL (370)
Tandem: CHMPILCP51T
🔧 Explore Switch(CLLI: CHMPILCPDS0))
217-693ILILLINOIS BELL TEL CO (AT&T)N/A9329CHAMPAURBNCHMPILCPDS000/00/0000Prefix Type: RBOC
Switch Name: CHAMPAIGN MAIN DS0
Switch Type: DMS1/2
LATA: Champaign IL (370)
Tandem: CHMPILCP51T
🔧 Explore Switch(CLLI: CHMPILCPDS0))
217-693 is split into 1,000-number blocks - detail below
217-693-0XXXILILLINOIS BELL TEL CO (AT&T)N/A9329CHAMPAURBNCHMPILCPDS0N/APrefix Type: RBOC
Switch Name: CHAMPAIGN MAIN DS0
Switch Type: DMS1/2
LATA: Champaign IL (370)
Tandem: CHMPILCP51T
🔧 Explore Switch(CLLI: CHMPILCPDS0))
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