Few three-digit prefixes carry as much California identity as the 818 area code. Stamped on the phone lines of Burbank soundstages, Glendale storefronts, and North Hollywood apartments alike, 818 has been the dial tone of the San Fernando Valley since the mid-1980s. If a call, text, or business listing shows this prefix, it's rooted in one of Los Angeles County's largest and most economically diverse regions.
This guide covers everything worth knowing about the 818 area code: where it sits on the map, how it came to exist, how it relates to the newer 747 overlay, the correct way to dial it, and what it takes to claim an 818 number for your own business — even if you're nowhere near California.
The 818 area code is a North American Numbering Plan (NANP) code assigned to the San Fernando Valley and a handful of adjoining communities within Los Angeles County, California. It sits entirely inside the Pacific Time Zone, observing PST (UTC−8) in winter and PDT (UTC−7) during daylight saving months.
The 818 footprint covers roughly 500 square miles and serves a population well over a million. Mobile number portability means an 818 number today could belong to a cell phone, a VoIP line, or a traditional business phone system.
The 818 area code location spans the northern half of the greater Los Angeles metro area, bounded by the Santa Susana and San Gabriel Mountains to the north and the Hollywood Hills to the south. It does not reach Downtown LA, Santa Clarita, or Pasadena — those fall under 213/323, 661, and 626 respectively.
Cities and communities commonly associated with the 818 area code include:
Understanding the backstory explains why the Valley now shares its numbering territory with a second code:
Because 747 was added as an overlay rather than a geographic split, it shares the exact same service area as 818. There's no functional difference between the two for callers — both ring through normally and can be assigned to landlines, mobiles, or VoIP numbers.
A local number does more than route calls — it signals where a business belongs. Companies serving the Valley, or wanting a foothold in it, often pick an 818 number for a few concrete reasons:
Getting an 818 number no longer requires a physical line installed by a local carrier. Most businesses today provision one through a cloud-based business phone platform:
Softtop's Business Phone plans include local numbers across every US area code — 818 included — provisioned instantly with no hardware required. Every line also comes with an AI Receptionist that answers in under a second, so a Valley-based line never goes to voicemail during a busy call spike. Businesses switching providers can port an existing 818 number in 5–10 business days with zero port-out fees.
The recognizability that makes 818 valuable for legitimate businesses also makes it attractive to scammers using caller ID spoofing — a fake local number designed to increase the odds a call gets answered. Common patterns include government or agency impersonation, fake utility shutoff threats, and prize or debt-collection pressure tactics.
To protect yourself: never share payment or personal information with an unexpected caller — hang up and call the organization back on a verified number. Use a phone platform with built-in spam and spoofing detection, ask your provider whether your line carries STIR/SHAKEN attestation, and report suspected spoofed calls to the Federal Trade Commission.
The 818 area code has represented the San Fernando Valley since 1984 — a region that spans entertainment studios, dense residential neighborhoods, and a wide mix of local businesses. Its 1997 boundary change and the 2009 addition of the 747 overlay didn't diminish its identity; if anything, 818 remains the more established of the two codes serving the Valley today.
Whether you're trying to identify an incoming call, planning a move to the area, or building a local presence for your business, understanding how 818 works — its coverage, its history, and its dialing rules — makes it easier to use with confidence. And for businesses that want that local footprint without opening a physical Valley office, a virtual 818 number paired with modern call routing and AI-assisted answering makes the process straightforward.