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
559-947CAPACIFIC BELL (AT&T)9740STRATFORDSRFRCA11RS000/00/0000Prefix Type: RBOC
Switch Name: STRATFORD
Switch Type: Northern Telecom Remote Switching Center
LATA: Fresno CA (728)
Tandem: N/A
Detailed Switch Info
Thousands block for 559-947
559-947-1CAPACIFIC BELL (AT&T)9740STRATFORDSRFRCA11RS0N/APrefix Type: RBOC
Switch Name: STRATFORD
Switch Type: Northern Telecom Remote Switching Center
LATA: Fresno CA (728)
Tandem: N/A
Detailed Switch Info
559-947-3CAPACIFIC BELL (AT&T)9740STRATFORDSRFRCA11RS0N/APrefix Type: RBOC
Switch Name: STRATFORD
Switch Type: Northern Telecom Remote Switching Center
LATA: Fresno CA (728)
Tandem: N/A
Detailed Switch Info