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Thousand Oaks, CA Area Codes

Thousand Oaks, California (population 122,230) uses area codes 805 and 820.

Area code805
Area code820
Time zonePacific
Local time now…
Thousand OaksOxnardSimi ValleySanta MariaSan BuenaventuraSanta BarbaraCamarilloSan Luis ObispoLompocMoorparkGoletaSanta PaulaEl Paso de RoblesThousand Oaks
Thousand Oaks and nearby cities in area code 805

Carriers with Thousand Oaks numbers

66 prefixes are assigned to the Thousand Oaks exchange: 44% mobile, 12% VoIP and cable, 44% landline.

CarrierPrefixes
Frontier17
Verizon Wireless14
T-Mobile9
AT&T Mobility5
Lumen (Level 3)3
Peerless Network2
Tpx Communications2
Metropcs Networks2

Area codes used in Thousand Oaks

Area codePrefixes serving Thousand OaksMain carriers in this code
80564Frontier, AT&T (Pacific Bell), Verizon Wireless
8202Fractel, AT&T Mobility, Onvoy (Sinch)

Thousand Oaks phone number prefixes

Numbers starting with these first six digits were originally assigned to the Thousand Oaks exchange.

Nearby cities in area code 805

Questions

What is the area code for Thousand Oaks, CA?
Thousand Oaks uses 2 area codes: 805 and 820. They overlay each other, so all of them cover the whole city and you dial 10 digits for local calls.
What time zone is Thousand Oaks in?
Thousand Oaks is in the Pacific time zone.