Area Code 408
San Jose, CA — California
Area code 408 serves San Jose and California. Get a local 408 number to build instant presence in this market.
Split from 415 in 1959 to serve the South Bay. San Jose anchored the code that would become the heart of Silicon Valley.
State
California (CA)
Capital: Sacramento
Time Zone
PT
Pacific Time (PT)
Region
West
US Census region
Code Type
Geographic
Original area code
Where does area code 408 cover?
Area code 408 serves communities across California. Cities below represent the primary coverage area per the NANP.
- San Jose
- Campbell
- Milpitas
- Santa Clara
- Sunnyvale
California phone number landscape
California holds more area codes than any other state, reflecting its massive economy — from San Francisco's tech epicenter and Los Angeles' entertainment industry to San Diego's biotech corridor.
Number format
When dialing from outside the US, prefix with +1. Within the US, dial all 10 digits including the area code.
History of Area Code 408
Split from 415 in 1959 to serve the South Bay. San Jose anchored the code that would become the heart of Silicon Valley.
Why get a 408 area code number?
A local 408 number gives your business a genuine connection to the California market — without the overhead of a physical location.
Local Market Access
Reach San Jose customers and businesses with a familiar local number. San Jose is the capital of Silicon Valley, home to a vast concentration of semiconductor and tech giants. Tech firms and chipmakers prize a 408 number for this Silicon Valley credibility.
Professional Credibility
A 408 number anchors your business in San Jose and California, giving clients and partners a recognizable local point of contact that builds immediate professional trust.
Higher Answer Rates
Local area codes are far less likely to be blocked. A 408 number keeps your outreach out of the spam folder.
Flexible Operations
Start with one 408 number and add more as you grow — all managed from a single letsdial dashboard.
How to obtain a 408 phone number.
Step 01 · Sign up
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Benefits of a local California number
A 408 area code tells California customers you're local and easy to reach.
- Local 408 numbers get answered more often than toll-free or out-of-state calls.
- Build local trust and brand recognition without a physical office.
- Keep your personal number private with a dedicated 408 business line.
Why local numbers win
Frequently asked about 408
Area code 408 covers San Jose, Campbell, Milpitas, Santa Clara, Sunnyvale in California. It is the primary area code for this region.
Ready to call California your market?
Get a local 408 number for your business in minutes. No contracts, no hardware — just a trusted local presence in California from day one.
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