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
619-292CAPACIFIC BELL (AT&T)9740NATIONALCYNTCYCA11DS000/00/0000Prefix Type: RBOC
Switch Name: NATIONAL CITY
Switch Type: Northern Telecom DMS100 (Digital) Host
LATA: San Diego CA (732)
Tandem: N/A
Detailed Switch Info
Thousands block for 619-292
619-292-7CAPACIFIC BELL (AT&T)9740NATIONALCYNTCYCA11DS0N/APrefix Type: RBOC
Switch Name: NATIONAL CITY
Switch Type: Northern Telecom DMS100 (Digital) Host
LATA: San Diego CA (732)
Tandem: N/A
Detailed Switch Info
619-336CAPACIFIC BELL (AT&T)9740NATIONALCYNTCYCA11DS000/00/0000Prefix Type: RBOC
Switch Name: NATIONAL CITY
Switch Type: Northern Telecom DMS100 (Digital) Host
LATA: San Diego CA (732)
Tandem: N/A
Detailed Switch Info
619-474CAPACIFIC BELL (AT&T)9740NATIONALCYNTCYCA11DS000/00/0000Prefix Type: RBOC
Switch Name: NATIONAL CITY
Switch Type: Northern Telecom DMS100 (Digital) Host
LATA: San Diego CA (732)
Tandem: N/A
Detailed Switch Info
619-477CAPACIFIC BELL (AT&T)9740NATIONALCYNTCYCA11DS000/00/0000Prefix Type: RBOC
Switch Name: NATIONAL CITY
Switch Type: Northern Telecom DMS100 (Digital) Host
LATA: San Diego CA (732)
Tandem: N/A
Detailed Switch Info
Thousands block for 619-731
619-731-3CAPACIFIC BELL (AT&T)9740NATIONALCYNTCYCA11DS012/23/2015Prefix Type: RBOC
Switch Name: NATIONAL CITY
Switch Type: Northern Telecom DMS100 (Digital) Host
LATA: San Diego CA (732)
Tandem: N/A
Detailed Switch Info