Input an Area Code (required) followed by the Prefix, or Exchange (optional):
-
If you were a paid member, you could be loading this into any version of Excel or Access (or any other software that understands CSV) right now for less than you paid for your breakfast or lunch today. If you are a member please login to access this and other functionality.

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

npa-nxxState/ProvinceCompanyFRNRMDOCNRate CenterCLLIAssign DateMisc
925-839CAU.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS0003733813RMD0003303671JMARTINEZSNJSCAYB0MD04/24/2001Prefix Type: UNKNOWN
Switch Name: N/A
Switch Type: N/A
LATA: San Francisco CA (722)
Tandem: N/A
🔧 Explore Switch(CLLI: SNJSCAYB0MD))
925-839 is split into 1,000-number blocks - detail below
925-839-0XXXCANEW CINGULAR WIRELESS PCS, LLC (AT&T Wireless)0003291192RMD00369096010MARTINEZCNCRCADOCM503/23/2020Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: San Francisco CA (722)
Tandem: N/A
🔧 Explore Switch(CLLI: CNCRCADOCM5))
925-839-1XXXCAONVOY, LLC - CA (Sinch)0004323028RMD0001966649CMARTINEZNOCLLIKNOWN10/02/2025Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: San Francisco CA (722)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
925-839-2XXXCAU.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS0003733813RMD0003303671JMARTINEZSNJSCAYB0MDN/APrefix Type: UNKNOWN
Switch Name: N/A
Switch Type: N/A
LATA: San Francisco CA (722)
Tandem: N/A
🔧 Explore Switch(CLLI: SNJSCAYB0MD))
925-839-3XXXCANEW CINGULAR WIRELESS PCS, LLC (AT&T Wireless)0003291192RMD00369096010MARTINEZCNCRCADOCM503/24/2021Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: San Francisco CA (722)
Tandem: N/A
🔧 Explore Switch(CLLI: CNCRCADOCM5))
925-839-4XXXCAONVOY, LLC - CA (Sinch)0004323028RMD0001966649CMARTINEZNOCLLIKNOWN02/25/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: San Francisco CA (722)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
925-839-5XXXCAONVOY, LLC - CA (Sinch)0004323028RMD0001966649CMARTINEZNOCLLIKNOWN02/25/2019Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: San Francisco CA (722)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
925-839-6XXXCAT-MOBILE USA, INC. (T-Mobile US, Inc)0017078262RMD00190516529MARTINEZCNCRCALZ0MD08/19/2020Prefix Type: PCS
Switch Name: CONCORD
Switch Type: N/A
LATA: San Francisco CA (722)
Tandem: N/A
🔧 Explore Switch(CLLI: CNCRCALZ0MD))
925-839-7XXXCAT-MOBILE USA, INC. (T-Mobile US, Inc)0017078262RMD00190516529MARTINEZCNCRCALZ0MD02/19/2019Prefix Type: PCS
Switch Name: CONCORD
Switch Type: N/A
LATA: San Francisco CA (722)
Tandem: N/A
🔧 Explore Switch(CLLI: CNCRCALZ0MD))
925-839-8XXXCAONVOY, LLC - CA (Sinch)0004323028RMD0001966649CMARTINEZNOCLLIKNOWN01/27/2026Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: San Francisco CA (722)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
925-839-9XXXCAU.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS0003733813RMD0003303671JMARTINEZSNJSCAYB0MDN/APrefix Type: UNKNOWN
Switch Name: N/A
Switch Type: N/A
LATA: San Francisco CA (722)
Tandem: N/A
🔧 Explore Switch(CLLI: SNJSCAYB0MD))