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California Polytechnic State University, CA Area Codes

California Polytechnic State University, California (population 7,529) uses area codes 805 and 820.

Area code805
Area code820
Time zonePacific
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California Polytechnic State University has no telephone exchange of its own in NANPA records; it is served by the San Luis Obispo exchange about 4.5 km away.

California Polytechnic State UniversityOxnardSimi ValleyThousand OaksSanta MariaSan BuenaventuraSanta BarbaraCamarilloSan Luis ObispoLompocMoorparkGoletaSanta PaulaCalifornia Polytechnic State University
California Polytechnic State University and nearby cities in area code 805

Carriers with California Polytechnic State University numbers

74 prefixes are assigned to the San Luis Obispo exchange: 22% mobile, 19% VoIP and cable, 59% landline.

CarrierPrefixes
AT&T (Pacific Bell)24
Verizon Wireless8
AT&T Mobility5
Lumen (Level 3)3
Onvoy (Sinch)2
Tpx Communications2
Bandwidth2
T-Mobile2

Area codes used in California Polytechnic State University

Area codePrefixes serving California Polytechnic State UniversityMain carriers in this code
80571Frontier, AT&T (Pacific Bell), Verizon Wireless
8203Fractel, AT&T Mobility, Onvoy (Sinch)

California Polytechnic State University phone number prefixes

Numbers starting with these first six digits were originally assigned to the San Luis Obispo exchange.

Nearby cities in area code 805

Questions

What is the area code for California Polytechnic State University, CA?
California Polytechnic State University 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 California Polytechnic State University in?
California Polytechnic State University is in the Pacific time zone.