Area code 408 covers San Jose and surrounding communities in California.
Updated 8 October 2026
Area code 408 is in California, shown here with San Jose marked.
Now in San Jose
Pacific Time · UTC−8, UTC−7 in summer
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Typical business hours, 9 to 5 Monday to Friday.
Typical business hours, 9 to 5 Monday to Friday, shown as the blue arc. A guide to when a real San Jose office is likely to answer. It says nothing about who called you.
Source: North American Numbering Plan Administrator, retrieved 8 October 2026.
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Is area code 408 a scam?
No. Area code 408 is a legitimate area code serving San Jose since 1959. Scammers spoof caller ID to display 408 numbers, which is why complaints exist against a code that is itself genuine.
Neighbour spoofing is the reason a local-looking number is not a guarantee. A caller anywhere in the world can display a 408 number, and the number they display may belong to a real business in San Jose that has nothing to do with the call.
The callerAnywhere in the worldSets the caller ID their equipment sends.
What is displayed(408) 317-0889May belong to a real San Jose business.
Your phoneLooks localA nearby code and prefix make you likelier to answer.
468Area code 408 had 468 different numbers reported for spam calls in the 30 days to 8 October 2026.
180thArea code 408 ranks 180th of 331 US geographic area codes by spam complaint volume.
63%Of the 493 complaints about area code 408 in the 30 days to 8 October 2026, 63% were reported as a recorded message or robocall.
14%The most reported subject on area code 408 is reducing your debt (credit cards, mortgage, student loans), appearing in 14% of its complaints in the 30 days to 8 October 2026.
Why am I getting text messages from area code 408?
Texts from 408 numbers follow the same pattern as calls — mostly local businesses and services. Treat any text asking for payment or credentials as suspect regardless of the code.
The common patterns are a wrong-number opener that turns into conversation, an unsolicited job offer, and a crypto or investment tip. Do not reply, do not follow the link, and forward the message to 7726 (SPAM) to report it to your carrier.
Pattern 1Wrong-number openerTurns into conversation.
Pattern 2Unsolicited job offerDo not reply, do not follow the link.
Pattern 3Crypto or investment tipTreat any payment ask as suspect.
Report it7726Forward the message. It spells SPAM on a keypad.
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Area codes that overlay 408
Area code 408 shares its geographic footprint with one other code: 669. Overlays are laid over an existing area rather than splitting it, so all local calls require the full ten-digit number.
Area code 408 has served the Santa Clara Valley since 1959, which means it predates the silicon that made the valley famous. San Jose calls itself the capital of Silicon Valley with some justification: the city passed one million residents at the 2020 census, making it the third largest in California, and its metro area concentrates more engineering talent per square mile than almost anywhere on earth. Semiconductor firms, networking companies, and software giants operate throughout the code, with Cisco, Adobe, eBay, and Zoom headquartered in San Jose itself and Apple next door in Cupertino.
Who lives in the 408 region
The demographics explain the talent pool. About 41.9% of San Jose residents were born outside the country, per 2024 Data USA figures, one of the highest shares of any major American city. Asian residents are the largest group, and Vietnamese, Spanish, and Chinese are the most widely spoken languages after English. San Jose has the largest Vietnamese population of any city outside Vietnam. Median household income reached $146,427 in 2024, among the highest in the nation, set against a median home value of $1.23 million.
What a 408 number signals to a caller
Business communication in the 408 region runs through calendars. Callers describe a culture where unscheduled phone calls are rare, meetings are booked in software, and a call without prior context is usually a wrong number or a robocall. That said, a number in area code 408 still signals valley roots to customers in San Jose, California, and among the region's thousands of small businesses, restaurants, and contractors, the phone remains how work actually gets booked.
Area code 408 serves San Jose and surrounding communities in California. It is in the Pacific Time zone.
What state is area code 408 in?
Area code 408 is in California. It is not in Mesa or Richmond or San Bernardino — those are area codes 480 and 804 and 840.
Is area code 408 toll free?
No. Area code 408 is a geographic area code serving San Jose, California. The toll-free codes are 800, 833, 844, 855, 866, 877, 888, and a call to a 408 number is charged at your normal rate.
Why am I getting calls from 408?
Calls displaying a 408 number come from businesses and individuals in the San Jose area, and from anywhere at all when caller ID is spoofed to look local. 468 408 numbers were reported to the FTC in the 30 days to 8 October 2026.
How do I block calls from area code 408?
Both iOS and Android can silence calls from unknown numbers, and every major US carrier offers free call-blocking. Blocking the whole of area code 408 is rarely worth it, because spoofed numbers change constantly and you would lose legitimate calls from San Jose.