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
858-441CAONVOY, LLC - CA (Sinch)0004323028RMD0001966649CEL CAJONNOCLLIKNOWN10/16/2025Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: San Diego CA (732)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
858-441 is split into 1,000-number blocks - detail below
858-441-0XXXCAONVOY, LLC - CA (Sinch)0004323028RMD0001966649CEL CAJONNOCLLIKNOWN10/16/2025Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: San Diego CA (732)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
858-441-1XXXCAONVOY, LLC - CA (Sinch)0004323028RMD0001966649CEL CAJONNOCLLIKNOWN02/18/2026Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: San Diego CA (732)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
858-441-2XXXCAONVOY, LLC - CA (Sinch)0004323028RMD0001966649CEL CAJONNOCLLIKNOWN02/18/2026Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: San Diego CA (732)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
858-441-4XXXCABOOST SUBSCRIBERCO L.L.C.0037698057RMD0031843490JEL CAJONNOCLLIKNOWN11/25/2025Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: San Diego CA (732)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
858-441-6XXXCATELEPORT COMMUNICATIONS AMERICA, LLC - CA (AT&T)0004274114RMD00038977147EL CAJONNOCLLIKNOWN03/18/2026Prefix Type: CLEC
Switch Name: N/A
Switch Type: N/A
LATA: San Diego CA (732)
Tandem: N/A
🔧 Explore Switch(CLLI: NOCLLIKNOWN))
858-441-9XXXCACELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA (Verizon Wireless)0029611852RMD00034396006EL CAJONSNDICAETAMD02/12/2026Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: San Diego CA (732)
Tandem: N/A
🔧 Explore Switch(CLLI: SNDICAETAMD))