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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🔎 Tip: Click any Company, OCN, Rate Center, or CLLI to explore related telecom data

npa-nxxStateCompanyFRNRMDOCNRate CenterCLLIAssign DateMisc
925-288CAPACIFIC BELL (AT&T)N/A9740CONCORDCNCRCA01DS100/00/0000Prefix Type: RBOC
Switch Name: CONCORD
Switch Type: N/A
LATA: San Francisco CA (722)
Tandem: N/A
🔧 Explore Switch(CLLI: CNCRCA01DS1))
925-356CAPACIFIC BELL (AT&T)N/A9740CONCORDCNCRCA01DS100/00/0000Prefix Type: RBOC
Switch Name: CONCORD
Switch Type: N/A
LATA: San Francisco CA (722)
Tandem: N/A
🔧 Explore Switch(CLLI: CNCRCA01DS1))
925-356 is split into 1,000-number blocks - detail below
925-356-0XXXCAPACIFIC BELL (AT&T)N/A9740CONCORDCNCRCA01DS1N/APrefix Type: RBOC
Switch Name: CONCORD
Switch Type: N/A
LATA: San Francisco CA (722)
Tandem: N/A
🔧 Explore Switch(CLLI: CNCRCA01DS1))
925-356-2XXXCAPACIFIC BELL (AT&T)N/A9740CONCORDCNCRCA01DS1N/APrefix Type: RBOC
Switch Name: CONCORD
Switch Type: N/A
LATA: San Francisco CA (722)
Tandem: N/A
🔧 Explore Switch(CLLI: CNCRCA01DS1))
925-356-3XXXCAPACIFIC BELL (AT&T)N/A9740CONCORDCNCRCA01DS1N/APrefix Type: RBOC
Switch Name: CONCORD
Switch Type: N/A
LATA: San Francisco CA (722)
Tandem: N/A
🔧 Explore Switch(CLLI: CNCRCA01DS1))
925-356-4XXXCAPACIFIC BELL (AT&T)N/A9740CONCORDCNCRCA01DS1N/APrefix Type: RBOC
Switch Name: CONCORD
Switch Type: N/A
LATA: San Francisco CA (722)
Tandem: N/A
🔧 Explore Switch(CLLI: CNCRCA01DS1))
925-356-5XXXCAPACIFIC BELL (AT&T)N/A9740CONCORDCNCRCA01DS1N/APrefix Type: RBOC
Switch Name: CONCORD
Switch Type: N/A
LATA: San Francisco CA (722)
Tandem: N/A
🔧 Explore Switch(CLLI: CNCRCA01DS1))
925-356-6XXXCAPACIFIC BELL (AT&T)N/A9740CONCORDCNCRCA01DS1N/APrefix Type: RBOC
Switch Name: CONCORD
Switch Type: N/A
LATA: San Francisco CA (722)
Tandem: N/A
🔧 Explore Switch(CLLI: CNCRCA01DS1))
925-356-7XXXCAPACIFIC BELL (AT&T)N/A9740CONCORDCNCRCA01DS1N/APrefix Type: RBOC
Switch Name: CONCORD
Switch Type: N/A
LATA: San Francisco CA (722)
Tandem: N/A
🔧 Explore Switch(CLLI: CNCRCA01DS1))
925-356-8XXXCAPACIFIC BELL (AT&T)N/A9740CONCORDCNCRCA01DS1N/APrefix Type: RBOC
Switch Name: CONCORD
Switch Type: N/A
LATA: San Francisco CA (722)
Tandem: N/A
🔧 Explore Switch(CLLI: CNCRCA01DS1))
925-356-9XXXCAPACIFIC BELL (AT&T)N/A9740CONCORDCNCRCA01DS1N/APrefix Type: RBOC
Switch Name: CONCORD
Switch Type: N/A
LATA: San Francisco CA (722)
Tandem: N/A
🔧 Explore Switch(CLLI: CNCRCA01DS1))
925-603CAPACIFIC BELL (AT&T)N/A9740CONCORDCNCRCA01DS100/00/0000Prefix Type: RBOC
Switch Name: CONCORD
Switch Type: N/A
LATA: San Francisco CA (722)
Tandem: N/A
🔧 Explore Switch(CLLI: CNCRCA01DS1))
925-603 is split into 1,000-number blocks - detail below
925-603-0XXXCAPACIFIC BELL (AT&T)N/A9740CONCORDCNCRCA01DS1N/APrefix Type: RBOC
Switch Name: CONCORD
Switch Type: N/A
LATA: San Francisco CA (722)
Tandem: N/A
🔧 Explore Switch(CLLI: CNCRCA01DS1))
925-603-1XXXCAPACIFIC BELL (AT&T)N/A9740CONCORDCNCRCA01DS1N/APrefix Type: RBOC
Switch Name: CONCORD
Switch Type: N/A
LATA: San Francisco CA (722)
Tandem: N/A
🔧 Explore Switch(CLLI: CNCRCA01DS1))
925-603-2XXXCAPACIFIC BELL (AT&T)N/A9740CONCORDCNCRCA01DS1N/APrefix Type: RBOC
Switch Name: CONCORD
Switch Type: N/A
LATA: San Francisco CA (722)
Tandem: N/A
🔧 Explore Switch(CLLI: CNCRCA01DS1))
925-603-5XXXCAPACIFIC BELL (AT&T)N/A9740CONCORDCNCRCA01DS1N/APrefix Type: RBOC
Switch Name: CONCORD
Switch Type: N/A
LATA: San Francisco CA (722)
Tandem: N/A
🔧 Explore Switch(CLLI: CNCRCA01DS1))
925-603-6XXXCAPACIFIC BELL (AT&T)N/A9740CONCORDCNCRCA01DS1N/APrefix Type: RBOC
Switch Name: CONCORD
Switch Type: N/A
LATA: San Francisco CA (722)
Tandem: N/A
🔧 Explore Switch(CLLI: CNCRCA01DS1))
925-603-7XXXCAPACIFIC BELL (AT&T)N/A9740CONCORDCNCRCA01DS1N/APrefix Type: RBOC
Switch Name: CONCORD
Switch Type: N/A
LATA: San Francisco CA (722)
Tandem: N/A
🔧 Explore Switch(CLLI: CNCRCA01DS1))
925-603-8XXXCAPACIFIC BELL (AT&T)N/A9740CONCORDCNCRCA01DS1N/APrefix Type: RBOC
Switch Name: CONCORD
Switch Type: N/A
LATA: San Francisco CA (722)
Tandem: N/A
🔧 Explore Switch(CLLI: CNCRCA01DS1))
925-603-9XXXCAPACIFIC BELL (AT&T)N/A9740CONCORDCNCRCA01DS1N/APrefix Type: RBOC
Switch Name: CONCORD
Switch Type: N/A
LATA: San Francisco CA (722)
Tandem: N/A
🔧 Explore Switch(CLLI: CNCRCA01DS1))
925-671CAPACIFIC BELL (AT&T)N/A9740CONCORDCNCRCA01DS100/00/0000Prefix Type: RBOC
Switch Name: CONCORD
Switch Type: N/A
LATA: San Francisco CA (722)
Tandem: N/A
🔧 Explore Switch(CLLI: CNCRCA01DS1))
925-674CAPACIFIC BELL (AT&T)N/A9740CONCORDCNCRCA01DS100/00/0000Prefix Type: RBOC
Switch Name: CONCORD
Switch Type: N/A
LATA: San Francisco CA (722)
Tandem: N/A
🔧 Explore Switch(CLLI: CNCRCA01DS1))
925-675CAPACIFIC BELL (AT&T)N/A9740CONCORDCNCRCA01DS100/00/0000Prefix Type: RBOC
Switch Name: CONCORD
Switch Type: N/A
LATA: San Francisco CA (722)
Tandem: N/A
🔧 Explore Switch(CLLI: CNCRCA01DS1))
925-676CAPACIFIC BELL (AT&T)N/A9740CONCORDCNCRCA01DS100/00/0000Prefix Type: RBOC
Switch Name: CONCORD
Switch Type: N/A
LATA: San Francisco CA (722)
Tandem: N/A
🔧 Explore Switch(CLLI: CNCRCA01DS1))
925-680CAPACIFIC BELL (AT&T)N/A9740CONCORDCNCRCA01DS100/00/0000Prefix Type: RBOC
Switch Name: CONCORD
Switch Type: N/A
LATA: San Francisco CA (722)
Tandem: N/A
🔧 Explore Switch(CLLI: CNCRCA01DS1))
925-681CAPACIFIC BELL (AT&T)N/A9740CONCORDCNCRCA01DS100/00/0000Prefix Type: RBOC
Switch Name: CONCORD
Switch Type: N/A
LATA: San Francisco CA (722)
Tandem: N/A
🔧 Explore Switch(CLLI: CNCRCA01DS1))
925-681 is split into 1,000-number blocks - detail below
925-681-0XXXCAPACIFIC BELL (AT&T)N/A9740CONCORDCNCRCA01DS1N/APrefix Type: RBOC
Switch Name: CONCORD
Switch Type: N/A
LATA: San Francisco CA (722)
Tandem: N/A
🔧 Explore Switch(CLLI: CNCRCA01DS1))
925-681-1XXXCAPACIFIC BELL (AT&T)N/A9740CONCORDCNCRCA01DS1N/APrefix Type: RBOC
Switch Name: CONCORD
Switch Type: N/A
LATA: San Francisco CA (722)
Tandem: N/A
🔧 Explore Switch(CLLI: CNCRCA01DS1))
925-681-2XXXCAPACIFIC BELL (AT&T)N/A9740CONCORDCNCRCA01DS1N/APrefix Type: RBOC
Switch Name: CONCORD
Switch Type: N/A
LATA: San Francisco CA (722)
Tandem: N/A
🔧 Explore Switch(CLLI: CNCRCA01DS1))
925-681-3XXXCAPACIFIC BELL (AT&T)N/A9740CONCORDCNCRCA01DS1N/APrefix Type: RBOC
Switch Name: CONCORD
Switch Type: N/A
LATA: San Francisco CA (722)
Tandem: N/A
🔧 Explore Switch(CLLI: CNCRCA01DS1))
925-681-4XXXCAPACIFIC BELL (AT&T)N/A9740CONCORDCNCRCA01DS1N/APrefix Type: RBOC
Switch Name: CONCORD
Switch Type: N/A
LATA: San Francisco CA (722)
Tandem: N/A
🔧 Explore Switch(CLLI: CNCRCA01DS1))
925-681-5XXXCAPACIFIC BELL (AT&T)N/A9740CONCORDCNCRCA01DS1N/APrefix Type: RBOC
Switch Name: CONCORD
Switch Type: N/A
LATA: San Francisco CA (722)
Tandem: N/A
🔧 Explore Switch(CLLI: CNCRCA01DS1))
925-681-6XXXCAPACIFIC BELL (AT&T)N/A9740CONCORDCNCRCA01DS1N/APrefix Type: RBOC
Switch Name: CONCORD
Switch Type: N/A
LATA: San Francisco CA (722)
Tandem: N/A
🔧 Explore Switch(CLLI: CNCRCA01DS1))
925-681-7XXXCAPACIFIC BELL (AT&T)N/A9740CONCORDCNCRCA01DS1N/APrefix Type: RBOC
Switch Name: CONCORD
Switch Type: N/A
LATA: San Francisco CA (722)
Tandem: N/A
🔧 Explore Switch(CLLI: CNCRCA01DS1))
925-682CAPACIFIC BELL (AT&T)N/A9740CONCORDCNCRCA01DS100/00/0000Prefix Type: RBOC
Switch Name: CONCORD
Switch Type: N/A
LATA: San Francisco CA (722)
Tandem: N/A
🔧 Explore Switch(CLLI: CNCRCA01DS1))
925-685CAPACIFIC BELL (AT&T)N/A9740CONCORDCNCRCA01DS100/00/0000Prefix Type: RBOC
Switch Name: CONCORD
Switch Type: N/A
LATA: San Francisco CA (722)
Tandem: N/A
🔧 Explore Switch(CLLI: CNCRCA01DS1))
925-686CAPACIFIC BELL (AT&T)N/A9740CONCORDCNCRCA01DS100/00/0000Prefix Type: RBOC
Switch Name: CONCORD
Switch Type: N/A
LATA: San Francisco CA (722)
Tandem: N/A
🔧 Explore Switch(CLLI: CNCRCA01DS1))
925-827CAPACIFIC BELL (AT&T)N/A9740CONCORDCNCRCA01DS100/00/0000Prefix Type: RBOC
Switch Name: CONCORD
Switch Type: N/A
LATA: San Francisco CA (722)
Tandem: N/A
🔧 Explore Switch(CLLI: CNCRCA01DS1))
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