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Area code for San Jose
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Key neighborhoods and districts
Prefix: 408
City center with tech companies and startups
Prefix: 408
Apple headquarters and tech offices
Prefix: 650
Google headquarters and tech campus
Prefix: 408
LinkedIn, Yahoo, and tech companies
Prefix: 408
Intel headquarters and tech manufacturing
San Jose is the tenth-largest city in the United States and the heart of Silicon Valley. As the self-proclaimed "Capital of Silicon Valley," San Jose is home to major tech giants including Apple, Google, Cisco, and countless startups. The city uses area code 408, which covers all of Silicon Valley including Cupertino, Mountain View, and Sunnyvale.
Major tech corridor with Samsung, Cisco offices
Format: +1 408 XXX XXXX
Apple headquarters and surrounding tech companies
Format: +1 408 XXX XXXX
LinkedIn, Amazon, and numerous tech campuses
Format: +1 408 XXX XXXX
Intel, Nvidia, and semiconductor companies
Format: +1 408 XXX XXXX
San Jose is in the Pacific Time Zone. Tech companies often have flexible hours, but core hours are 10 AM - 4 PM. Many prefer Slack or email to phone calls. Fridays are often work-from-home or half days. The industry operates globally, so some teams work unusual hours for international coordination.
Step-by-step dialing instructions
Dial the full 10-digit number. 408 covers San Jose and most of Silicon Valley.
408 covers San Jose, Cupertino (Apple), Mountain View (Google), Sunnyvale, Santa Clara. 650 covers areas closer to San Francisco (Palo Alto, Menlo Park).
Exceptional coverage - this is the tech capital. All carriers compete heavily here. 5G is widely available.
Silicon Valley has a casual, innovative culture. Jeans and hoodies are standard even for executives. However, the pace is intense and people are very busy. Email may be preferred for initial contact.
Example: +1 408 1234567
Common reasons people call this city
Connect with Apple, Google, Cisco, Intel, and other tech leaders
Reach venture capital firms and tech startups
Contact chip makers and hardware companies
Connect with software companies and cloud providers
Key statistics and information
Population
Time Zone
Business Hours
Peak Times
Get answers to common questions
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