Area Code 858 — California
Area code 858 is located in California and operates on Pacific Time . The largest city served is La Mesa .
Coverage Area
Area code 858 — CaliforniaArea Code Details
- Area Code
- 858
- State / Province
- California (CA)
- Country
- United States
- Time Zone
- Pacific Time Pacific Time
- Local Time Now
- —
- Status
- Active
- Code Type
- General Purpose Code
- In Service Since
- June 12, 1999
- Assigned
- June 30, 1998
- Population Served
- ~170,365 est.
- Overlay Complex
- 619/858
Cities Served
History & Relationships
Split from
619Overlay complex — shares geography with
Rate Centers & Exchanges
8 rate centers identified within area code 858
Other Area Codes in California
View all →Nearby Area Codes
Frequently Asked Questions About Area Code 858
What state is area code 858?
Area code 858 is located in California, United States.
Where is area code 858 from?
Area code 858 originates from California. It operates in the Pacific Time zone.
What time zone is area code 858?
Area code 858 falls within the Pacific Time zone (Pacific Time).
What cities are in area code 858?
Area code 858 serves cities including La Mesa, Rancho Penasquitos, La Jolla, Del Mar, Rancho Santa Fe, San Diego: Linda Vista DA, San Diego: San Diego DA, San Diego: Mira Mesa DA.
Is a call from area code 858 a scam?
Area code 858 is a legitimate general purpose code area code serving California. Like any area code, individual numbers using 858 can be used for scam calls — always verify the specific number if you receive an unexpected or suspicious call.