Everything you need to know about area code 408 in California
QUICK FACTS
California
Pacific Time Zone
Split from existing code
Estimated residents served
California
Primary code for this region
ABOUT THIS AREA CODE
Area code 408 covers San Jose and the heart of Silicon Valley, including Sunnyvale and Santa Clara. It serves the technology capital of the world and is home to Apple, Google, and numerous tech startups.
Phone numbers with the 408 area code follow the format (408) XXX-XXXX, where the next three digits represent the local exchange. The 408 area code is part of the North American Numbering Plan (NANP) and is regulated by the Federal Communications Commission (FCC).
If you receive a call from a 408 number that you don't recognize, you can search it using the lookup tool above. While the 408 area code legitimately serves millions of residents and businesses in the San Jose area, scammers sometimes spoof local area codes to make their calls appear more trustworthy. Always verify unfamiliar numbers before returning calls or sharing personal information.
The San Jose region served by area code 408 is one of the most densely populated areas in California. As a primary geographic code, 408 has been the main identifier for this region since it was introduced in 1959.
For detailed information about any phone number in the 408 area code, including owner identification, carrier data, and spam reports, use our search tool above or visit one of our trusted lookup providers.
CITIES & COMMUNITIES
SPAM & SCAM ALERTS
These are frequently reported scam patterns from phone numbers using the 408 area code. Scammers often spoof area codes, so a call appearing to come from 408 may originate elsewhere.
Callers claim to be from the IRS, threatening arrest or legal action unless immediate payment is made. The real IRS always contacts taxpayers by mail first.
Callers claim your computer has a virus and offer to fix it remotely. They install malware or charge for unnecessary services.
Automated messages claim suspicious activity on your bank account and ask you to verify account details by pressing a number.
Stay Safe: Never share personal information with incoming callers. If suspicious, hang up and search the number above.
FREQUENTLY ASKED QUESTIONS
Area code 408 serves San Jose, California. Area code 408 covers San Jose and the heart of Silicon Valley, including Sunnyvale and Santa Clara. It serves the technology capital of the world and is home to Apple, Google, and numerous tech startups.
Area code 408 is in the Pacific timezone. Calls from 408 numbers originate from the San Jose region.
Not necessarily. Area code 408 serves many people in San Jose. However, scammers can spoof any area code. If you receive a suspicious call from a 408 number, search it above before calling back.
Area code 408 was created in 1959. It serves as the primary geographic code for its region.
RELATED AREA CODES
WHO CALLED ME
If you received an unknown call from a 408 number, use our dedicated lookup page to identify the caller and check for scam reports.
Who Called Me From 408? →PHONE SAFETY GUIDES
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