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
312-225ILILLINOIS BELL TEL CO (AT&T)9329CHICGOZN01CHCGILCADS100/00/0000Prefix Type: RBOC
Switch Name: CHCG CALUMET DS1
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: CHCGILST55T
Detailed Switch Info
312-842ILILLINOIS BELL TEL CO (AT&T)9329CHICGOZN01CHCGILCADS100/00/0000Prefix Type: RBOC
Switch Name: CHCG CALUMET DS1
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: CHCGILST55T
Detailed Switch Info
Thousands block for 312-881
312-881-3ILILLINOIS BELL TEL CO (AT&T)9329CHICGOZN01CHCGILCADS105/14/2002Prefix Type: RBOC
Switch Name: CHCG CALUMET DS1
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: CHCGILST55T
Detailed Switch Info
312-949ILILLINOIS BELL TEL CO (AT&T)9329CHICGOZN01CHCGILCADS100/00/0000Prefix Type: RBOC
Switch Name: CHCG CALUMET DS1
Switch Type: DMS100
LATA: Chicago IL METRO (358)
Tandem: CHCGILST55T
Detailed Switch Info
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