If you're reaching Los Angeles clients with a toll-free number, you're handing competitors a local advantage before the phone rings. The 424 area code covers Beverly Hills, Santa Monica, Malibu, Culver City, and South Bay communities where entertainment, aerospace, and Silicon Beach tech converge. This guide covers history, time zone, scam awareness, and setup steps.
What Is the 424 Area Code?
The 424 area code is a California telephone area code serving the western and southwestern portions of Los Angeles County. It operates as an overlay of the 310 area code, meaning both codes serve the exact same geographic region and are equally local to residents and businesses there.
Quick Facts:
| Detail | Info |
|---|---|
| Area Code | 424 |
| Relationship | Overlay of 310 area code |
| State | California |
| Region | LA Westside, South Bay, Beach Cities |
| Time Zone | Pacific Time (PT) |
| Officially Launched | July 26, 2006 |
| Coverage | 21+ cities in LA County + Catalina Island |
Area code 424 is California's first overlay code, introduced when 310 could no longer keep pace with mobile, VoIP, and business demand. New subscribers may receive either a 310 or 424 number — both are recognized as local LA numbers. Understanding the 213 area code gives useful context for how LA's telephone regions evolved over time and why overlays became the preferred regulatory solution for number exhaustion.
Where Does the 424 Code Cover?
The 424 area code spans a broad section of Los Angeles County, from Beverly Hills to Malibu and the commercial corridors of the South Bay.
Westside Los Angeles
Beverly Hills is one of the most recognized communities in the 424 zone — home to Rodeo Drive, talent agencies, and luxury hospitality. Santa Monica anchors Silicon Beach as a gateway for major tech campuses. Culver City hosts Sony Pictures Studios alongside Apple TV+, Amazon Studios, and HBO. Playa Vista is where Google, Microsoft, and dozens of startups cluster at the former Hughes Aircraft site. West Hollywood and Westwood add media and higher education density anchored by UCLA.
South Bay
El Segundo anchors an aerospace corridor with Lockheed Martin, Northrop Grumman, and Raytheon. Torrance is home to Honda's North American headquarters. Manhattan Beach, Hermosa Beach, and Redondo Beach form the Beach Cities. Inglewood transformed with SoFi Stadium, home to the NFL's Rams and Chargers, and Hawthorne hosts SpaceX's California headquarters.
Catalina Island and Malibu
Santa Catalina Island, approximately 22 miles off the coast, falls within the 424/310 coverage area. Malibu's Pacific Coast Highway corridor connects high-net-worth residents and entertainment figures.
History of the 424 Area Code
The 424 area code launched on July 26, 2006, rooted in the original 213 code that once served all of Southern California. By 1991, demand created the 310 area code for the Westside and South Bay; in 1997, the southeast portion split off as 562. The Federal Communications Commission coordinates area code overlays when number exhaustion makes them necessary.
The 1999 Protest and the Consumer Area Code Relief Act
What makes 424 history unusual is organized public resistance. In 1999, LA Westside residents pushed back against the proposed overlay, leading the California State Assembly to pass the Consumer Area Code Relief Act of 1999, temporarily shelving it. By 2006, number exhaustion made the overlay unavoidable, and 310 subscribers retained their numbers while new subscribers received area code 424 numbers.
424 Area Code Time Zone
This region operates entirely within the Pacific Time Zone (PT) — Pacific Standard Time (PST, UTC-8) from early November to mid-March and Pacific Daylight Time (PDT, UTC-7) from mid-March to early November. Eastern Time is 3 hours ahead, Central is 2 hours ahead, and Mountain is 1 hour ahead. The best calling window is 9 AM to 5 PM PT.
Is a 424 Area Code Call a Scam?
The 424 area code is legitimate, but its name recognition makes it a frequent target for caller ID spoofing, where scammers fake a local area code to increase answer rates.
Common 424-Spoofed Scams
Student loan forgiveness robocalls request personal information under the guise of changing loan status. Fake bank fraud alerts impersonate major LA-area banks and ask recipients to transfer funds to a "safe account." Utility payment fraud impersonates LADWP or SoCalGas demanding immediate prepaid-card payment.
Protecting Yourself and Your Business
Legitimate agencies and utilities never demand immediate payment via gift card or cryptocurrency on an unsolicited call. Hang up and call the organization back using the official number from their website. Businesses should use a STIR/SHAKEN-compliant VoIP provider to verify caller ID data and reduce spoofing.
The 424 Economy: What Powers the Region
The 424 area code zone covers a powerful concentration of industries. Entertainment and streaming is anchored by Sony Pictures Studios in Culver City plus Apple TV+, Amazon Studios, and HBO campuses. Silicon Beach technology clusters in Playa Vista and Santa Monica around Google, Microsoft, and venture-backed startups. Aerospace and defense dominates El Segundo and Hawthorne with SpaceX's headquarters. Tourism and hospitality draws tens of millions annually to Malibu, Santa Monica, and Beverly Hills.
Why a 424 Business Number Strengthens Your LA Presence
A 424 number delivers advantages no toll-free or out-of-state number can replicate in the Los Angeles market. Consumers answer local area code calls at higher rates, and Beverly Hills, Malibu, and Santa Monica carry global prestige that elevates your brand. A consistent 424 number in your Google Business Profile reinforces local SEO for LA Westside searches. Virtual phone numbers route a 424 number to any device anywhere, letting remote teams establish a credible local presence without a physical office. Businesses that serve clients across multiple LA neighborhoods benefit from pairing a 424 number with the 310 area code, since both codes are recognized as equally local throughout the Westside and South Bay service territory.
How to Get a Local 424 Business Number
1. Choose a VoIP provider — confirm active 424 inventory, since some providers have limited stock given the 310/424 dual-code structure.
2. Select your number — filter by digit pattern or choose a vanity option for branded memorability.
3. Configure call routing — forward to mobile, a team queue, an IVR menu, or a softphone app.
4. Enable SMS — activate two-way text messaging for appointment reminders and customer support.
5. Port if needed — Local Number Portability lets you transfer an existing 424 number to a new provider without interruption.
What to Look for in a Provider
| Challenge | Solution |
|---|---|
| Missed calls outside business hours | After-hours IVR with voicemail-to-email routing |
| Call volume spikes | Cloud VoIP scales concurrent lines on demand |
| Scam spoofing damaging caller ID | STIR/SHAKEN-compliant provider |
| Remote teams needing a unified LA number | Call forwarding and softphone apps |
Rozper provides local 424 numbers with 99.999% uptime across 150+ countries — supporting an LA Westside presence and global communication from one platform.
What's Next for the 424 Region
Silicon Beach will keep scaling as Playa Vista and Santa Monica attract continued venture investment. Commercial development around SoFi Stadium will generate long-term spillover for South Bay businesses. UCaaS is replacing legacy phone systems as studios and startups adopt cloud-based platforms.
Conclusion
The 424 area code is California's answer to a geography that kept outgrowing its number supply — an overlay built to preserve the 310 identity Westside LA spent decades building. For businesses, a 424 number raises answer rates, signals community presence, and supports local SEO. The right area code makes sure the call gets answered.
Frequently Asked Questions
What cities are covered by the 424 area code? The 424 code covers the Westside and South Bay of Los Angeles County, including Beverly Hills, Santa Monica, Malibu, Culver City, West Hollywood, Manhattan Beach, Torrance, Inglewood, Hawthorne, and Catalina Island.
What is the difference between 310 and 424? 424 is an overlay of 310 — both codes cover the same territory. When 310 ran out of available numbers in 2006, the 424 code was introduced, and both are equally local to Westside LA and South Bay.
What time zone is the 424 area code in? Area code 424 is in the Pacific Time Zone — PST (UTC-8) from November through mid-March and PDT (UTC-7) from mid-March through November, 3 hours behind Eastern Time.
Can I get a 424 area code number without being based in Los Angeles? Yes. Virtual area code 424 numbers route calls to any device — mobile, softphone, or desktop app — regardless of location. Businesses outside LA can establish a credible Westside presence without a local office.
