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
510-247CAPACIFIC BELL (AT&T)9740HAYWARDHYWRCA01DS000/00/0000Prefix Type: RBOC
Switch Name: HAYWARD (MAIN)
Switch Type: Northern Telecom DMS100 (Digital) Host
LATA: San Francisco CA (722)
Tandem: N/A
Detailed Switch Info
Thousands block for 510-247
510-247-0CAPACIFIC BELL (AT&T)9740HAYWARDHYWRCA01DS0N/APrefix Type: RBOC
Switch Name: HAYWARD (MAIN)
Switch Type: Northern Telecom DMS100 (Digital) Host
LATA: San Francisco CA (722)
Tandem: N/A
Detailed Switch Info
510-247-1CAPACIFIC BELL (AT&T)9740HAYWARDHYWRCA01DS0N/APrefix Type: RBOC
Switch Name: HAYWARD (MAIN)
Switch Type: Northern Telecom DMS100 (Digital) Host
LATA: San Francisco CA (722)
Tandem: N/A
Detailed Switch Info
510-247-2CAPACIFIC BELL (AT&T)9740HAYWARDHYWRCA01DS0N/APrefix Type: RBOC
Switch Name: HAYWARD (MAIN)
Switch Type: Northern Telecom DMS100 (Digital) Host
LATA: San Francisco CA (722)
Tandem: N/A
Detailed Switch Info
510-247-3CAPACIFIC BELL (AT&T)9740HAYWARDHYWRCA01DS0N/APrefix Type: RBOC
Switch Name: HAYWARD (MAIN)
Switch Type: Northern Telecom DMS100 (Digital) Host
LATA: San Francisco CA (722)
Tandem: N/A
Detailed Switch Info
510-247-5CAPACIFIC BELL (AT&T)9740HAYWARDHYWRCA01DS0N/APrefix Type: RBOC
Switch Name: HAYWARD (MAIN)
Switch Type: Northern Telecom DMS100 (Digital) Host
LATA: San Francisco CA (722)
Tandem: N/A
Detailed Switch Info
510-247-6CAPACIFIC BELL (AT&T)9740HAYWARDHYWRCA01DS0N/APrefix Type: RBOC
Switch Name: HAYWARD (MAIN)
Switch Type: Northern Telecom DMS100 (Digital) Host
LATA: San Francisco CA (722)
Tandem: N/A
Detailed Switch Info
510-247-7CAPACIFIC BELL (AT&T)9740HAYWARDHYWRCA01DS0N/APrefix Type: RBOC
Switch Name: HAYWARD (MAIN)
Switch Type: Northern Telecom DMS100 (Digital) Host
LATA: San Francisco CA (722)
Tandem: N/A
Detailed Switch Info
510-247-8CAPACIFIC BELL (AT&T)9740HAYWARDHYWRCA01DS0N/APrefix Type: RBOC
Switch Name: HAYWARD (MAIN)
Switch Type: Northern Telecom DMS100 (Digital) Host
LATA: San Francisco CA (722)
Tandem: N/A
Detailed Switch Info
510-247-9CAPACIFIC BELL (AT&T)9740HAYWARDHYWRCA01DS0N/APrefix Type: RBOC
Switch Name: HAYWARD (MAIN)
Switch Type: Northern Telecom DMS100 (Digital) Host
LATA: San Francisco CA (722)
Tandem: N/A
Detailed Switch Info
510-537CAPACIFIC BELL (AT&T)9740HAYWARDHYWRCA01DS000/00/0000Prefix Type: RBOC
Switch Name: HAYWARD (MAIN)
Switch Type: Northern Telecom DMS100 (Digital) Host
LATA: San Francisco CA (722)
Tandem: N/A
Detailed Switch Info
510-538CAPACIFIC BELL (AT&T)9740HAYWARDHYWRCA01DS000/00/0000Prefix Type: RBOC
Switch Name: HAYWARD (MAIN)
Switch Type: Northern Telecom DMS100 (Digital) Host
LATA: San Francisco CA (722)
Tandem: N/A
Detailed Switch Info
510-581CAPACIFIC BELL (AT&T)9740HAYWARDHYWRCA01DS000/00/0000Prefix Type: RBOC
Switch Name: HAYWARD (MAIN)
Switch Type: Northern Telecom DMS100 (Digital) Host
LATA: San Francisco CA (722)
Tandem: N/A
Detailed Switch Info
510-582CAPACIFIC BELL (AT&T)9740HAYWARDHYWRCA01DS000/00/0000Prefix Type: RBOC
Switch Name: HAYWARD (MAIN)
Switch Type: Northern Telecom DMS100 (Digital) Host
LATA: San Francisco CA (722)
Tandem: N/A
Detailed Switch Info
510-583CAPACIFIC BELL (AT&T)9740HAYWARDHYWRCA01DS000/00/0000Prefix Type: RBOC
Switch Name: HAYWARD (MAIN)
Switch Type: Northern Telecom DMS100 (Digital) Host
LATA: San Francisco CA (722)
Tandem: N/A
Detailed Switch Info
510-690CAPACIFIC BELL (AT&T)9740HAYWARDHYWRCA01DS000/00/0000Prefix Type: RBOC
Switch Name: HAYWARD (MAIN)
Switch Type: Northern Telecom DMS100 (Digital) Host
LATA: San Francisco CA (722)
Tandem: N/A
Detailed Switch Info
Thousands block for 510-690
510-690-0CAPACIFIC BELL (AT&T)9740HAYWARDHYWRCA01DS0N/APrefix Type: RBOC
Switch Name: HAYWARD (MAIN)
Switch Type: Northern Telecom DMS100 (Digital) Host
LATA: San Francisco CA (722)
Tandem: N/A
Detailed Switch Info
510-690-1CAPACIFIC BELL (AT&T)9740HAYWARDHYWRCA01DS0N/APrefix Type: RBOC
Switch Name: HAYWARD (MAIN)
Switch Type: Northern Telecom DMS100 (Digital) Host
LATA: San Francisco CA (722)
Tandem: N/A
Detailed Switch Info
510-690-2CAPACIFIC BELL (AT&T)9740HAYWARDHYWRCA01DS0N/APrefix Type: RBOC
Switch Name: HAYWARD (MAIN)
Switch Type: Northern Telecom DMS100 (Digital) Host
LATA: San Francisco CA (722)
Tandem: N/A
Detailed Switch Info
510-690-6CAPACIFIC BELL (AT&T)9740HAYWARDHYWRCA01DS0N/APrefix Type: RBOC
Switch Name: HAYWARD (MAIN)
Switch Type: Northern Telecom DMS100 (Digital) Host
LATA: San Francisco CA (722)
Tandem: N/A
Detailed Switch Info
510-690-9CAPACIFIC BELL (AT&T)9740HAYWARDHYWRCA01DS0N/APrefix Type: RBOC
Switch Name: HAYWARD (MAIN)
Switch Type: Northern Telecom DMS100 (Digital) Host
LATA: San Francisco CA (722)
Tandem: N/A
Detailed Switch Info
510-727CAPACIFIC BELL (AT&T)9740HAYWARDHYWRCA01DS000/00/0000Prefix Type: RBOC
Switch Name: HAYWARD (MAIN)
Switch Type: Northern Telecom DMS100 (Digital) Host
LATA: San Francisco CA (722)
Tandem: N/A
Detailed Switch Info
Thousands block for 510-727
510-727-0CAPACIFIC BELL (AT&T)9740HAYWARDHYWRCA01DS0N/APrefix Type: RBOC
Switch Name: HAYWARD (MAIN)
Switch Type: Northern Telecom DMS100 (Digital) Host
LATA: San Francisco CA (722)
Tandem: N/A
Detailed Switch Info
510-727-1CAPACIFIC BELL (AT&T)9740HAYWARDHYWRCA01DS0N/APrefix Type: RBOC
Switch Name: HAYWARD (MAIN)
Switch Type: Northern Telecom DMS100 (Digital) Host
LATA: San Francisco CA (722)
Tandem: N/A
Detailed Switch Info
510-727-2CAPACIFIC BELL (AT&T)9740HAYWARDHYWRCA01DS0N/APrefix Type: RBOC
Switch Name: HAYWARD (MAIN)
Switch Type: Northern Telecom DMS100 (Digital) Host
LATA: San Francisco CA (722)
Tandem: N/A
Detailed Switch Info
510-727-3CAPACIFIC BELL (AT&T)9740HAYWARDHYWRCA01DS0N/APrefix Type: RBOC
Switch Name: HAYWARD (MAIN)
Switch Type: Northern Telecom DMS100 (Digital) Host
LATA: San Francisco CA (722)
Tandem: N/A
Detailed Switch Info
510-727-4CAPACIFIC BELL (AT&T)9740HAYWARDHYWRCA01DS0N/APrefix Type: RBOC
Switch Name: HAYWARD (MAIN)
Switch Type: Northern Telecom DMS100 (Digital) Host
LATA: San Francisco CA (722)
Tandem: N/A
Detailed Switch Info
510-727-6CAPACIFIC BELL (AT&T)9740HAYWARDHYWRCA01DS0N/APrefix Type: RBOC
Switch Name: HAYWARD (MAIN)
Switch Type: Northern Telecom DMS100 (Digital) Host
LATA: San Francisco CA (722)
Tandem: N/A
Detailed Switch Info
510-727-7CAPACIFIC BELL (AT&T)9740HAYWARDHYWRCA01DS0N/APrefix Type: RBOC
Switch Name: HAYWARD (MAIN)
Switch Type: Northern Telecom DMS100 (Digital) Host
LATA: San Francisco CA (722)
Tandem: N/A
Detailed Switch Info
510-727-8CAPACIFIC BELL (AT&T)9740HAYWARDHYWRCA01DS0N/APrefix Type: RBOC
Switch Name: HAYWARD (MAIN)
Switch Type: Northern Telecom DMS100 (Digital) Host
LATA: San Francisco CA (722)
Tandem: N/A
Detailed Switch Info
510-727-9CAPACIFIC BELL (AT&T)9740HAYWARDHYWRCA01DS0N/APrefix Type: RBOC
Switch Name: HAYWARD (MAIN)
Switch Type: Northern Telecom DMS100 (Digital) Host
LATA: San Francisco CA (722)
Tandem: N/A
Detailed Switch Info
510-728CAPACIFIC BELL (AT&T)9740HAYWARDHYWRCA01DS000/00/0000Prefix Type: RBOC
Switch Name: HAYWARD (MAIN)
Switch Type: Northern Telecom DMS100 (Digital) Host
LATA: San Francisco CA (722)
Tandem: N/A
Detailed Switch Info
510-733CAPACIFIC BELL (AT&T)9740HAYWARDHYWRCA01DS000/00/0000Prefix Type: RBOC
Switch Name: HAYWARD (MAIN)
Switch Type: Northern Telecom DMS100 (Digital) Host
LATA: San Francisco CA (722)
Tandem: N/A
Detailed Switch Info
510-881CAPACIFIC BELL (AT&T)9740HAYWARDHYWRCA01DS000/00/0000Prefix Type: RBOC
Switch Name: HAYWARD (MAIN)
Switch Type: Northern Telecom DMS100 (Digital) Host
LATA: San Francisco CA (722)
Tandem: N/A
Detailed Switch Info
Thousands block for 510-881
510-881-0CAPACIFIC BELL (AT&T)9740HAYWARDHYWRCA01DS0N/APrefix Type: RBOC
Switch Name: HAYWARD (MAIN)
Switch Type: Northern Telecom DMS100 (Digital) Host
LATA: San Francisco CA (722)
Tandem: N/A
Detailed Switch Info
510-881-1CAPACIFIC BELL (AT&T)9740HAYWARDHYWRCA01DS0N/APrefix Type: RBOC
Switch Name: HAYWARD (MAIN)
Switch Type: Northern Telecom DMS100 (Digital) Host
LATA: San Francisco CA (722)
Tandem: N/A
Detailed Switch Info
510-881-2CAPACIFIC BELL (AT&T)9740HAYWARDHYWRCA01DS0N/APrefix Type: RBOC
Switch Name: HAYWARD (MAIN)
Switch Type: Northern Telecom DMS100 (Digital) Host
LATA: San Francisco CA (722)
Tandem: N/A
Detailed Switch Info
510-881-4CAPACIFIC BELL (AT&T)9740HAYWARDHYWRCA01DS0N/APrefix Type: RBOC
Switch Name: HAYWARD (MAIN)
Switch Type: Northern Telecom DMS100 (Digital) Host
LATA: San Francisco CA (722)
Tandem: N/A
Detailed Switch Info
510-881-5CAPACIFIC BELL (AT&T)9740HAYWARDHYWRCA01DS0N/APrefix Type: RBOC
Switch Name: HAYWARD (MAIN)
Switch Type: Northern Telecom DMS100 (Digital) Host
LATA: San Francisco CA (722)
Tandem: N/A
Detailed Switch Info
510-881-7CAPACIFIC BELL (AT&T)9740HAYWARDHYWRCA01DS0N/APrefix Type: RBOC
Switch Name: HAYWARD (MAIN)
Switch Type: Northern Telecom DMS100 (Digital) Host
LATA: San Francisco CA (722)
Tandem: N/A
Detailed Switch Info
510-881-8CAPACIFIC BELL (AT&T)9740HAYWARDHYWRCA01DS0N/APrefix Type: RBOC
Switch Name: HAYWARD (MAIN)
Switch Type: Northern Telecom DMS100 (Digital) Host
LATA: San Francisco CA (722)
Tandem: N/A
Detailed Switch Info
510-881-9CAPACIFIC BELL (AT&T)9740HAYWARDHYWRCA01DS0N/APrefix Type: RBOC
Switch Name: HAYWARD (MAIN)
Switch Type: Northern Telecom DMS100 (Digital) Host
LATA: San Francisco CA (722)
Tandem: N/A
Detailed Switch Info
510-885CAPACIFIC BELL (AT&T)9740HAYWARDHYWRCA01DS000/00/0000Prefix Type: RBOC
Switch Name: HAYWARD (MAIN)
Switch Type: Northern Telecom DMS100 (Digital) Host
LATA: San Francisco CA (722)
Tandem: N/A
Detailed Switch Info
510-886CAPACIFIC BELL (AT&T)9740HAYWARDHYWRCA01DS000/00/0000Prefix Type: RBOC
Switch Name: HAYWARD (MAIN)
Switch Type: Northern Telecom DMS100 (Digital) Host
LATA: San Francisco CA (722)
Tandem: N/A
Detailed Switch Info
510-888CAPACIFIC BELL (AT&T)9740HAYWARDHYWRCA01DS000/00/0000Prefix Type: RBOC
Switch Name: HAYWARD (MAIN)
Switch Type: Northern Telecom DMS100 (Digital) Host
LATA: San Francisco CA (722)
Tandem: N/A
Detailed Switch Info
510-889CAPACIFIC BELL (AT&T)9740HAYWARDHYWRCA01DS000/00/0000Prefix Type: RBOC
Switch Name: HAYWARD (MAIN)
Switch Type: Northern Telecom DMS100 (Digital) Host
LATA: San Francisco CA (722)
Tandem: N/A
Detailed Switch Info
Thousands block for 510-889
510-889-0CAPACIFIC BELL (AT&T)9740HAYWARDHYWRCA01DS0N/APrefix Type: RBOC
Switch Name: HAYWARD (MAIN)
Switch Type: Northern Telecom DMS100 (Digital) Host
LATA: San Francisco CA (722)
Tandem: N/A
Detailed Switch Info
510-889-1CAPACIFIC BELL (AT&T)9740HAYWARDHYWRCA01DS0N/APrefix Type: RBOC
Switch Name: HAYWARD (MAIN)
Switch Type: Northern Telecom DMS100 (Digital) Host
LATA: San Francisco CA (722)
Tandem: N/A
Detailed Switch Info
510-889-2CAPACIFIC BELL (AT&T)9740HAYWARDHYWRCA01DS0N/APrefix Type: RBOC
Switch Name: HAYWARD (MAIN)
Switch Type: Northern Telecom DMS100 (Digital) Host
LATA: San Francisco CA (722)
Tandem: N/A
Detailed Switch Info
510-889-3CAPACIFIC BELL (AT&T)9740HAYWARDHYWRCA01DS0N/APrefix Type: RBOC
Switch Name: HAYWARD (MAIN)
Switch Type: Northern Telecom DMS100 (Digital) Host
LATA: San Francisco CA (722)
Tandem: N/A
Detailed Switch Info
510-889-5CAPACIFIC BELL (AT&T)9740HAYWARDHYWRCA01DS0N/APrefix Type: RBOC
Switch Name: HAYWARD (MAIN)
Switch Type: Northern Telecom DMS100 (Digital) Host
LATA: San Francisco CA (722)
Tandem: N/A
Detailed Switch Info
510-889-6CAPACIFIC BELL (AT&T)9740HAYWARDHYWRCA01DS0N/APrefix Type: RBOC
Switch Name: HAYWARD (MAIN)
Switch Type: Northern Telecom DMS100 (Digital) Host
LATA: San Francisco CA (722)
Tandem: N/A
Detailed Switch Info
510-889-7CAPACIFIC BELL (AT&T)9740HAYWARDHYWRCA01DS0N/APrefix Type: RBOC
Switch Name: HAYWARD (MAIN)
Switch Type: Northern Telecom DMS100 (Digital) Host
LATA: San Francisco CA (722)
Tandem: N/A
Detailed Switch Info
510-889-8CAPACIFIC BELL (AT&T)9740HAYWARDHYWRCA01DS0N/APrefix Type: RBOC
Switch Name: HAYWARD (MAIN)
Switch Type: Northern Telecom DMS100 (Digital) Host
LATA: San Francisco CA (722)
Tandem: N/A
Detailed Switch Info
510-889-9CAPACIFIC BELL (AT&T)9740HAYWARDHYWRCA01DS0N/APrefix Type: RBOC
Switch Name: HAYWARD (MAIN)
Switch Type: Northern Telecom DMS100 (Digital) Host
LATA: San Francisco CA (722)
Tandem: N/A
Detailed Switch Info
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