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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npa-nxxStateCompanyOCNRate CenterCLLIAssign DateMisc
231-354MIMICHIGAN BELL TEL CO (AT&T)9323CORALTRFNMIMNRSA00/00/0000Prefix Type: RBOC
Switch Name: TRUFANT
Switch Type: N/A
LATA: Grand Rapids MI (348)
Tandem: GDRPMIBL21T
Detailed Switch Info
Thousands block for 231-354
231-354-6MIMICHIGAN BELL TEL CO (AT&T)9323CORALTRFNMIMNRSAN/APrefix Type: RBOC
Switch Name: TRUFANT
Switch Type: N/A
LATA: Grand Rapids MI (348)
Tandem: GDRPMIBL21T
Detailed Switch Info
616-984MIMICHIGAN BELL TEL CO (AT&T)9323TRUFANTTRFNMIMNRSA00/00/0000Prefix Type: RBOC
Switch Name: TRUFANT
Switch Type: N/A
LATA: Grand Rapids MI (348)
Tandem: GDRPMIBL21T
Detailed Switch Info
Thousands block for 616-984
616-984-2MIMICHIGAN BELL TEL CO (AT&T)9323TRUFANTTRFNMIMNRSAN/APrefix Type: RBOC
Switch Name: TRUFANT
Switch Type: N/A
LATA: Grand Rapids MI (348)
Tandem: GDRPMIBL21T
Detailed Switch Info
616-984-5MIMICHIGAN BELL TEL CO (AT&T)9323TRUFANTTRFNMIMNRSAN/APrefix Type: RBOC
Switch Name: TRUFANT
Switch Type: N/A
LATA: Grand Rapids MI (348)
Tandem: GDRPMIBL21T
Detailed Switch Info
616-984-6MIMICHIGAN BELL TEL CO (AT&T)9323TRUFANTTRFNMIMNRSAN/APrefix Type: RBOC
Switch Name: TRUFANT
Switch Type: N/A
LATA: Grand Rapids MI (348)
Tandem: GDRPMIBL21T
Detailed Switch Info
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