747 Area Code: The San Fernando Valley’s Overlay of 818

The 747 area code is the second telephone prefix of the San Fernando Valley — the newer of the two codes that share the broad basin on the northern side of Los Angeles, from Burbank and Glendale in the east to Calabasas and Hidden Hills in the west. Where an older Valley line usually opens with 818, many numbers activated across the region in the past decade begin with 747.

The two codes cover the exact same ground; 747 is simply the one the Valley grew into when its original numbers ran short.

A 747 number turns up in two kinds of searches: people handed a fresh 747 line who want to know where it comes from, and people wondering why a Los Angeles number they expected to start with 818 now starts with 747.

This guide answers both — the Valley cities and neighborhoods 747 serves, how and why it was overlaid onto 818 in 2009, what the overlay means for daily dialing, what to watch for with spoofed calls, and how to activate a 747 virtual number for a business in minutes.

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The 747 area code is a telephone area code serving the San Fernando Valley region of Los Angeles County, California, along with a small slice of eastern Ventura County.

It was introduced on May 18, 2009, as an overlay of the long-established 818 code rather than as a geographic split — meaning it was layered directly on top of the same territory to add a fresh pool of numbers without changing anyone’s existing line.

Because it shares the Valley with 818, every 747 number sits inside the same communities: Burbank, Glendale, Van Nuys, North Hollywood and the rest of the Valley floor. New businesses and residents in the area are often assigned a 747 prefix simply because it is the code with numbers still available.

Dialing Format and Time Zone

• Dialing format: (747) 555-0142
• International: +1 747-555-0142
• Time zone: Pacific Time (PT) — UTC−8 standard, UTC−7 during Daylight Saving Time
• 10-digit dialing is mandatory across the region because 747 overlays 818 — the full area code must be dialed on every local call

The 747 area code maps onto the San Fernando Valley exactly as 818 does, because an overlay covers the identical footprint as the code beneath it. It reaches from the independent cities of Burbank and Glendale on the eastern edge to Calabasas, Hidden Hills and Agoura Hills in the west, and it takes in the full arc of Los Angeles neighborhoods around the Valley floor.

The independent city of San Fernando, entirely surrounded by Los Angeles, also falls inside 747. Companies opening in any of these communities frequently start with a virtual line tied to the region before signing a lease.

Major Cities and Communities

• Burbank — the studio district and one of the most concentrated media-production centers in the world
• Glendale — an independent city and dense commercial hub on the Valley’s eastern edge
• Van Nuys — the central Valley district that serves as a civic and government center for the area
• North Hollywood — the NoHo Arts District, packed with theaters, studios and creative firms
• Sherman Oaks & Encino — the busy Ventura Boulevard corridor and the leafy professional pockets south of the Valley floor
• Northridge — home to California State University, Northridge and a large student population
• Woodland Hills & Canoga Park — west Valley business districts anchored by the Warner Center office cluster
• Reseda, Tarzana & Chatsworth — established central and northwest Valley residential and light-industrial communities
• Calabasas, Hidden Hills & Agoura Hills — the affluent cities at the Valley’s far western end

Beyond the Valley, different codes take over in every direction. To the north, 661 covers Santa Clarita and the Antelope Valley after its 1999 split from 818. To the east, 626 serves Pasadena and the San Gabriel Valley, while 213 and 323 cover central and eastern Los Angeles. To the south and west, 310 and 424 reach the Westside and the coast. Within the Valley itself, though, 747 and 818 are interchangeable — two prefixes for one place.

The entire 747 region observes Pacific Time (PT) — UTC−8 during standard time and UTC−7 during Daylight Saving Time, from mid-March through early November. The Valley keeps the same clock as the rest of Los Angeles, San Francisco, Seattle and the whole West Coast, so there is no internal time-zone split to manage when scheduling calls within the area.

For a business, the practical detail is the three-hour gap with the East Coast. A 9 a.m. start in the Valley is already noon in New York, so teams selling into both coasts tend to front-load eastern outreach in the morning and reserve the afternoon for local calls. A 747 line signals to Valley customers that a company keeps local hours, even when the team behind it works from somewhere else entirely.

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The 747 code exists because the Valley ran out of 818 numbers. The original 818 code was created in 1984 out of the Los Angeles 213 code, and over the following two decades the San Fernando Valley’s steady growth consumed the available number supply.

Rather than split the Valley in two and force half its residents to renumber, regulators chose an overlay: on May 18, 2009, the 747 code was added across the exact same territory as the 818 area code, opening a fresh block of numbers while every existing line stayed unchanged.

• Overlay, not split — no one with an 818 number had to change it; 747 simply supplied new numbers alongside it
• Mandatory 10-digit dialing — once two codes shared one region, every local call had to include the area code to stay unambiguous
• New assignments — because 818 was largely exhausted, most numbers issued in the Valley after 2009 carry the 747 prefix

Overlays have become the standard way to add capacity in busy metros precisely because they spare residents and businesses the disruption of a split. The result in the Valley is two codes living side by side: 818 on the long-held lines, 747 on the newer ones, both ringing to the same neighborhoods.

Anyone curious about the older code and its 1984 origins can read the full 818 area code guide for the earlier 626 and 661 splits that shaped the Valley’s borders.

For a caller or customer, there is no functional difference between a 747 and an 818 number. Both are San Fernando Valley codes, both cover the identical map, and both cost the same to call from anywhere. The distinction is mostly one of vintage: an 818 number has likely been in service for years or decades, while a 747 number was probably activated more recently. Neither is more local than the other — a Valley resident recognizes both as home.

• Same region — 747 and 818 ring to the exact same cities and neighborhoods across the Valley
• Same dialing — 10-digit dialing applies to both; there is no extra step for either code
• Availability — because 818 is largely used up, 747 is where most newly issued Valley numbers come from today
• Recognition — 818 carries longer-standing name recognition, but 747 reads as unmistakably Valley to anyone who knows Los Angeles

For a business choosing a Valley number, the takeaway is simple: pick whichever prefix has the specific digits or memorable pattern worth having, because both project the same local identity. A 747 line is not a lesser 818 — it is the same Valley presence on a newer set of numbers, and it comes without the wait for scarce 818 inventory.

A 747 number connects a business to one of the most recognizable local economies in the country, because the San Fernando Valley is where a large share of the world’s film and television content is physically produced. Burbank alone has earned the nickname the Media Capital of the World, and the surrounding Valley layers a deep, diversified economy on top of that headline industry.

Setting up a dedicated business phone number on a 747 line puts a company inside that world from the first ring.

Entertainment and the Studios

Burbank is home to the Warner Bros. lot and the Walt Disney Studios and has hosted major television operations for decades, with Universal Studios just over the hill in Universal City. The result is a dense cluster of soundstages, post-production houses, talent agencies and production-support firms across Burbank, Glendale, North Hollywood and Studio City — much of it reachable on a Valley phone line, whether the prefix is 747 or 818.

Beyond the Backlots

The Valley is far more than film sets. Glendale anchors a major retail and corporate corridor, Warner Center in Woodland Hills is a substantial office cluster, and California State University, Northridge brings a large education and research presence. Healthcare, professional services, light manufacturing and a deep bench of family-owned small businesses round out an economy that a 747 number sits naturally within.

A Valley office is not required to use a 747 number. Modern VoIP and cloud phone providers let a business activate a 747 line in minutes, with no hardware and no long-term contract. Search the available 747 inventory, choose a number, complete a short verification, and route the line to any device anywhere in the world.

Because 747 covers the whole San Fernando Valley, the number reads as local whether a customer is in Burbank, Van Nuys or Woodland Hills — even for a team working remotely from another state.

A 747 number suits production companies, post houses, talent and casting professionals, real-estate agents and any service business that wants to look established in the Valley without waiting for scarce 818 inventory. MeraTalk provides 747 numbers as part of its cloud telephony platform — lines activate in minutes, route to any device, and pair with voicemail, call recording, an auto-attendant and CRM integration from a single dashboard. To get started, search available numbers at meratalk.com.

747 is a legitimate California code, but like any area code its numbers can be spoofed. Caller-ID spoofing lets a fraudster make any number — including a 747 prefix — appear on a screen, so a Valley resident sees what looks like a nearby Burbank or Glendale business, bank or agency calling. The prefix itself proves nothing: a genuine 747 call and a spoofed one look identical on the display.

Federal robocall and caller-ID rules make it illegal to transmit misleading caller-ID information with intent to defraud, but enforcement comes after the fact, so the first line of defense is a cautious resident.

• Fake studio or casting fees — a call or text promising work but demanding an upfront payment or registration fee before anything is confirmed
• Bank and payment alerts — a warning about a suspicious transaction pushing you to call back or tap a link right away
• Utility and agency threats — callers claiming an unpaid balance or service cutoff unless you pay immediately, often by gift card or wire transfer

The reliable defense is to hang up and call back through a number found independently — on a bill, an official website or a saved contact. California’s guidance on telephone fraud explains how these schemes work and how to respond, and no genuine bank, utility, studio or government office demands gift cards or wire transfers over the phone.

A local-looking 747 caller ID is never proof of who is really on the line, and any pressure to act right away should be treated as a warning sign in itself. For more, see California’s guidance on telephone fraud.

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