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All Area Codes/California
818

Agoura Hills, California

Area code 818

State
California
Region
Pacific
Time zone
PT
Type
Geographic
--:--local time

Got a missed call from 818?

Our directory lists 818 for Agoura Hills, California, but an area code alone cannot establish who is calling. Scammers can fake caller ID to match the first six digits of the number they are dialing, a trick called neighbor spoofing, so a familiar-looking code proves nothing about who is really calling.

If you were not expecting the call, let it go to voicemail. Verify the caller through a trusted contact method before returning the call, and never share personal details with an unverified caller.

Worth knowing: an area code no longer tells you where someone is. Mobile numbers keep their original code when people move, so a 818 number may belong to someone who left California years ago.

Frequently asked questions about 818

Where is area code 818?

Our directory lists area code 818 for Agoura Hills, California. The listed city is a reference location, not a complete coverage map. A phone number's area code does not establish the caller's current location.

What time zone is area code 818 in?

This directory uses Pacific Time (PT) for California. This is state-level guidance; confirm the recipient's local time before calling.

Is area code 818 a scam?

An area code alone cannot tell you whether a call is genuine. Caller ID can be spoofed, including numbers that appear local. Let unexpected calls go to voicemail and verify the caller independently before sharing personal information.

Is area code 818 toll-free?

The directory lists 818 as a geographic area code, not a toll-free code. US toll-free codes include 800, 833, 844, 855, 866, 877, and 888. Your carrier and calling plan determine any charges.

37 listed area codes in California

209 Lodi213 Los Angeles279 Arden-Arcade310 Los Angeles323 Los Angeles341 Oakland369 Santa Rosa408 Gilroy415 San Francisco424 Beverly Hills442 Apple Valley510 Alameda530 Chico559 Clovis562 Bellflower619 Chula Vista626 Alhambra627 Santa Rosa628 San Francisco650 Daly City657 Anaheim661 Earlimart669 San Jose707 Benicia714 Anaheim747 Burbank760 Apple Valley805 Camarillo820 Camarillo831 Salinas858 San Diego909 Anaheim916 Elk Grove925 Antioch949 Costa Mesa951 Corona

Nearby in the Pacific

206 Seattle253 Kent360 Bellingham425 Bellevue458 Eugene503 Beaver509 Kennewick541 Bend564 Seattle808 Honolulu

Where Is Area Code 818?

Area code 818 serves Agoura Hills and most of the San Fernando Valley in northwestern Los Angeles County, California. It also covers nearby communities north and west of the City of Los Angeles. It is a geographic phone area, so its boundaries do not match city limits exactly.

Major cities in the region include Agoura Hills, Burbank, Calabasas, Glendale, and San Fernando. The code also covers parts of the City of Los Angeles, including San Fernando Valley communities such as Encino, North Hollywood, Northridge, and Van Nuys. These places are in Los Angeles County.

The area includes the San Fernando Valley, which lies south of the Santa Susana Mountains and north of the Santa Monica Mountains. Notable places in the region include California State University, Northridge, Warner Bros. Studios in Burbank, and Universal Studios Hollywood in Universal City. Area code 747 overlays the same region, so both codes serve it.

Cities and Communities in the 818 Area Code

  • Agoura Hills, Los Angeles County
  • Burbank, Los Angeles County
  • Calabasas, Los Angeles County
  • Encino, Los Angeles County
  • Glendale, Los Angeles County
  • Hidden Hills, Los Angeles County
  • La Cañada Flintridge, Los Angeles County
  • Los Angeles (San Fernando Valley portions), Los Angeles County
  • North Hollywood, Los Angeles County
  • Northridge, Los Angeles County
  • San Fernando, Los Angeles County
  • Van Nuys, Los Angeles County
  • Woodland Hills, Los Angeles County

History of Area Code 818

Area code 818 began service on January 7, 1984, after splitting from area code 213. Before the split, 213 served a larger part of Los Angeles County, including the San Fernando Valley. The new code created a separate numbering area for the valley and nearby communities.

In 1997, area code 626 was created from eastern parts of the 818 region to serve the San Gabriel Valley, including Pasadena. In 2009, California introduced area code 747 as an overlay for the 818 region. An overlay adds another area code to the same geographic area instead of changing its boundaries.

Key Facts About Area Code 818

  • Area code 818 is in California, and Agoura Hills is its primary city.
  • The region is in the U.S. Census Pacific region and uses Pacific Time.
  • The 818 service area is mainly in Los Angeles County and includes much of the San Fernando Valley.
  • Area code 818 began service on January 7, 1984, as a split from area code 213.
  • Area code 626 was created in 1997 from eastern territory that had been part of the 818 region.
  • Area code 747 became an overlay for the 818 region in 2009.
  • California State University, Northridge, is located in the Northridge community within the 818 and 747 region.
  • Warner Bros. Studios in Burbank and Universal Studios Hollywood in Universal City are notable places in the region.