424 Area Code: Silicon Beach's Modern Overlay
Table of Contents
424 launched in 2009 as an overlay to 310, covering the same West Los Angeles footprint as demand for new numbers grew.
History & Coverage
Rather than splitting territory, 424 was introduced as an overlay — meaning it shares the exact same geographic area as 310, including Santa Monica, Beverly Hills, and the South Bay, just with ten-digit dialing required.
Why Businesses Choose 424
- Silicon Beach tech identity: newer startups and tech companies in Santa Monica and Venice often carry 424 numbers as later arrivals to the ecosystem
- Same prestige footprint as 310: businesses get West LA's affluent association without needing an older, scarcer 310 number
- Modern, tech-forward feel: 424 is increasingly seen as the number of choice for younger, digitally native companies
Key Industries & Neighborhoods
Santa Monica and Venice anchor 424's tech and media startups, while Beverly Hills and the Westside add entertainment and finance overlap with 310.
Fun Facts
- 424 was one of the first overlay codes in California requiring mandatory ten-digit local dialing
- Many Silicon Beach unicorn startups were founded by teams using 424 numbers
Conclusion
424 offers the same West LA prestige as 310 with a modern, tech-forward edge — a strong choice for Silicon Beach businesses.
Frequently Asked Questions
Everything you need to know, answered in full below.
What areas does 424 cover?
424 is an overlay covering the same West Los Angeles area as 310, including Santa Monica, Beverly Hills, and the South Bay.
Is 424 different from 310?
424 shares the exact same geography as 310; it was added as an overlay code once 310 numbers ran low.
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