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
805-521CAPACIFIC BELL (AT&T)9740PIRUPIRUCA11RS000/00/0000Prefix Type: RBOC
Switch Name: PIRU
Switch Type: Northern Telecom DMS10S
LATA: Los Angeles CA (730)
Tandem: N/A
Detailed Switch Info
Thousands block for 805-521
805-521-0CAPACIFIC BELL (AT&T)9740PIRUPIRUCA11RS0N/APrefix Type: RBOC
Switch Name: PIRU
Switch Type: Northern Telecom DMS10S
LATA: Los Angeles CA (730)
Tandem: N/A
Detailed Switch Info
805-521-1CAPACIFIC BELL (AT&T)9740PIRUPIRUCA11RS0N/APrefix Type: RBOC
Switch Name: PIRU
Switch Type: Northern Telecom DMS10S
LATA: Los Angeles CA (730)
Tandem: N/A
Detailed Switch Info
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