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
224-512ILILLINOIS BELL TEL CO (AT&T)N/A9329BARRINGTONBNTOILAGDS001/17/2002Prefix Type: RBOC
Switch Name: BARRINGTON SOUTH
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: NCHCILNC20T
🔧 Explore Switch(CLLI: BNTOILAGDS0))
224-512 is split into 1,000-number blocks - detail below
224-512-1XXXILILLINOIS BELL TEL CO (AT&T)N/A9329BARRINGTONBNTOILAGDS0N/APrefix Type: RBOC
Switch Name: BARRINGTON SOUTH
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: NCHCILNC20T
🔧 Explore Switch(CLLI: BNTOILAGDS0))
224-512-2XXXILILLINOIS BELL TEL CO (AT&T)N/A9329BARRINGTONBNTOILAGDS0N/APrefix Type: RBOC
Switch Name: BARRINGTON SOUTH
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: NCHCILNC20T
🔧 Explore Switch(CLLI: BNTOILAGDS0))
224-512-3XXXILILLINOIS BELL TEL CO (AT&T)N/A9329BARRINGTONBNTOILAGDS0N/APrefix Type: RBOC
Switch Name: BARRINGTON SOUTH
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: NCHCILNC20T
🔧 Explore Switch(CLLI: BNTOILAGDS0))
224-512-5XXXILILLINOIS BELL TEL CO (AT&T)N/A9329BARRINGTONBNTOILAGDS0N/APrefix Type: RBOC
Switch Name: BARRINGTON SOUTH
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: NCHCILNC20T
🔧 Explore Switch(CLLI: BNTOILAGDS0))
224-512-6XXXILILLINOIS BELL TEL CO (AT&T)N/A9329BARRINGTONBNTOILAGDS0N/APrefix Type: RBOC
Switch Name: BARRINGTON SOUTH
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: NCHCILNC20T
🔧 Explore Switch(CLLI: BNTOILAGDS0))
847-248ILILLINOIS BELL TEL CO (AT&T)N/A9329BARRINGTONBNTOILAGDS000/00/0000Prefix Type: RBOC
Switch Name: BARRINGTON SOUTH
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: NCHCILNC20T
🔧 Explore Switch(CLLI: BNTOILAGDS0))
847-765ILILLINOIS BELL TEL CO (AT&T)N/A9329BARRINGTONBNTOILAGDS000/00/0000Prefix Type: RBOC
Switch Name: BARRINGTON SOUTH
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: NCHCILNC20T
🔧 Explore Switch(CLLI: BNTOILAGDS0))
847-765 is split into 1,000-number blocks - detail below
847-765-0XXXILILLINOIS BELL TEL CO (AT&T)N/A9329BARRINGTONBNTOILAGDS0N/APrefix Type: RBOC
Switch Name: BARRINGTON SOUTH
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: NCHCILNC20T
🔧 Explore Switch(CLLI: BNTOILAGDS0))
847-765-1XXXILILLINOIS BELL TEL CO (AT&T)N/A9329BARRINGTONBNTOILAGDS0N/APrefix Type: RBOC
Switch Name: BARRINGTON SOUTH
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: NCHCILNC20T
🔧 Explore Switch(CLLI: BNTOILAGDS0))
847-765-2XXXILILLINOIS BELL TEL CO (AT&T)N/A9329BARRINGTONBNTOILAGDS0N/APrefix Type: RBOC
Switch Name: BARRINGTON SOUTH
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: NCHCILNC20T
🔧 Explore Switch(CLLI: BNTOILAGDS0))
847-765-3XXXILILLINOIS BELL TEL CO (AT&T)N/A9329BARRINGTONBNTOILAGDS0N/APrefix Type: RBOC
Switch Name: BARRINGTON SOUTH
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: NCHCILNC20T
🔧 Explore Switch(CLLI: BNTOILAGDS0))
847-765-4XXXILILLINOIS BELL TEL CO (AT&T)N/A9329BARRINGTONBNTOILAGDS0N/APrefix Type: RBOC
Switch Name: BARRINGTON SOUTH
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: NCHCILNC20T
🔧 Explore Switch(CLLI: BNTOILAGDS0))
847-765-5XXXILILLINOIS BELL TEL CO (AT&T)N/A9329BARRINGTONBNTOILAGDS0N/APrefix Type: RBOC
Switch Name: BARRINGTON SOUTH
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: NCHCILNC20T
🔧 Explore Switch(CLLI: BNTOILAGDS0))
847-765-6XXXILILLINOIS BELL TEL CO (AT&T)N/A9329BARRINGTONBNTOILAGDS0N/APrefix Type: RBOC
Switch Name: BARRINGTON SOUTH
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: NCHCILNC20T
🔧 Explore Switch(CLLI: BNTOILAGDS0))
847-765-7XXXILILLINOIS BELL TEL CO (AT&T)N/A9329BARRINGTONBNTOILAGDS0N/APrefix Type: RBOC
Switch Name: BARRINGTON SOUTH
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: NCHCILNC20T
🔧 Explore Switch(CLLI: BNTOILAGDS0))
847-765-9XXXILILLINOIS BELL TEL CO (AT&T)N/A9329BARRINGTONBNTOILAGDS0N/APrefix Type: RBOC
Switch Name: BARRINGTON SOUTH
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: NCHCILNC20T
🔧 Explore Switch(CLLI: BNTOILAGDS0))
847-898ILILLINOIS BELL TEL CO (AT&T)N/A9329BARRINGTONBNTOILAGDS000/00/0000Prefix Type: RBOC
Switch Name: BARRINGTON SOUTH
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: NCHCILNC20T
🔧 Explore Switch(CLLI: BNTOILAGDS0))
847-898 is split into 1,000-number blocks - detail below
847-898-0XXXILILLINOIS BELL TEL CO (AT&T)N/A9329BARRINGTONBNTOILAGDS0N/APrefix Type: RBOC
Switch Name: BARRINGTON SOUTH
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: NCHCILNC20T
🔧 Explore Switch(CLLI: BNTOILAGDS0))
847-898-1XXXILILLINOIS BELL TEL CO (AT&T)N/A9329BARRINGTONBNTOILAGDS0N/APrefix Type: RBOC
Switch Name: BARRINGTON SOUTH
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: NCHCILNC20T
🔧 Explore Switch(CLLI: BNTOILAGDS0))
847-898-2XXXILILLINOIS BELL TEL CO (AT&T)N/A9329BARRINGTONBNTOILAGDS0N/APrefix Type: RBOC
Switch Name: BARRINGTON SOUTH
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: NCHCILNC20T
🔧 Explore Switch(CLLI: BNTOILAGDS0))
847-898-3XXXILILLINOIS BELL TEL CO (AT&T)N/A9329BARRINGTONBNTOILAGDS0N/APrefix Type: RBOC
Switch Name: BARRINGTON SOUTH
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: NCHCILNC20T
🔧 Explore Switch(CLLI: BNTOILAGDS0))
847-898-4XXXILILLINOIS BELL TEL CO (AT&T)N/A9329BARRINGTONBNTOILAGDS0N/APrefix Type: RBOC
Switch Name: BARRINGTON SOUTH
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: NCHCILNC20T
🔧 Explore Switch(CLLI: BNTOILAGDS0))
847-898-5XXXILILLINOIS BELL TEL CO (AT&T)N/A9329BARRINGTONBNTOILAGDS0N/APrefix Type: RBOC
Switch Name: BARRINGTON SOUTH
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: NCHCILNC20T
🔧 Explore Switch(CLLI: BNTOILAGDS0))
847-898-6XXXILILLINOIS BELL TEL CO (AT&T)N/A9329BARRINGTONBNTOILAGDS0N/APrefix Type: RBOC
Switch Name: BARRINGTON SOUTH
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: NCHCILNC20T
🔧 Explore Switch(CLLI: BNTOILAGDS0))
847-898-7XXXILILLINOIS BELL TEL CO (AT&T)N/A9329BARRINGTONBNTOILAGDS0N/APrefix Type: RBOC
Switch Name: BARRINGTON SOUTH
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: NCHCILNC20T
🔧 Explore Switch(CLLI: BNTOILAGDS0))
847-898-8XXXILILLINOIS BELL TEL CO (AT&T)N/A9329BARRINGTONBNTOILAGDS0N/APrefix Type: RBOC
Switch Name: BARRINGTON SOUTH
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: NCHCILNC20T
🔧 Explore Switch(CLLI: BNTOILAGDS0))
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