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npa-nxxState/ProvinceCompanyFRNRMDOCNRate CenterCLLIAssign DateMisc
831-274CALEVEL 3 COMMUNICATIONS, LLC - CA (Lumen Technologies, Inc)0015338122RMD00061128826WATSONVLSNFCCASY5MD00/00/0000Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: San Francisco CA (722)
Tandem: N/A
🔧 Explore Switch(CLLI: SNFCCASY5MD))
831-274 is split into 1,000-number blocks - detail below
831-274-0XXXCAT-MOBILE USA, INC. (T-Mobile US, Inc)0017078262RMD00190516529WATSONVLCNCRCALZ0MD02/22/2021Prefix Type: PCS
Switch Name: CONCORD
Switch Type: N/A
LATA: San Francisco CA (722)
Tandem: N/A
🔧 Explore Switch(CLLI: CNCRCALZ0MD))
831-274-1XXXCAONVOY, LLC - CA (Sinch)0004323028RMD0001966649CWATSONVLNOCLLIKNOWN12/05/2012Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: San Francisco CA (722)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
831-274-2XXXCALEVEL 3 COMMUNICATIONS, LLC - CA (Lumen Technologies, Inc)0015338122RMD00061128826WATSONVLSNFCCASY5MDN/APrefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: San Francisco CA (722)
Tandem: N/A
🔧 Explore Switch(CLLI: SNFCCASY5MD))
831-274-3XXXCAMCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA (Verizon Communications)0004999405RMD00029577240WATSONVLSNJSCARMDS008/22/2003Prefix Type: CLEC
Switch Name: SAN JOSE
Switch Type: Northern Telecom DMS100 (Digital) Host
LATA: San Francisco CA (722)
Tandem: N/A
🔧 Explore Switch(CLLI: SNJSCARMDS0))
831-274-4XXXCAONVOY, LLC - CA (Sinch)0004323028RMD0001966649CWATSONVLNOCLLIKNOWN02/17/2005Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: San Francisco CA (722)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
831-274-5XXXCALEVEL 3 COMMUNICATIONS, LLC - CA (Lumen Technologies, Inc)0015338122RMD00061128826WATSONVLSNFCCASY5MD05/17/2006Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: San Francisco CA (722)
Tandem: N/A
🔧 Explore Switch(CLLI: SNFCCASY5MD))
831-274-6XXXCALEVEL 3 COMMUNICATIONS, LLC - CA (Lumen Technologies, Inc)0015338122RMD00061128826WATSONVLSNFCCASY5MDN/APrefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: San Francisco CA (722)
Tandem: N/A
🔧 Explore Switch(CLLI: SNFCCASY5MD))
831-274-7XXXCAONVOY, LLC - CA (Sinch)0004323028RMD0001966649CWATSONVLNOCLLIKNOWN12/05/2012Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: San Francisco CA (722)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
831-274-8XXXCANEW CINGULAR WIRELESS PCS, LLC (AT&T Wireless)0003291192RMD00369096010WATSONVLSNTDCAUJCM906/05/2025Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: San Francisco CA (722)
Tandem: N/A
🔧 Explore Switch(CLLI: SNTDCAUJCM9))
831-274-9XXXCATERRA NOVA TELECOM INC.0021193057RMD0001495145JWATSONVLNOCLLIKNOWN05/11/2026Prefix Type: IPES
Switch Name: N/A
Switch Type: N/A
LATA: San Francisco CA (722)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
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