Area Code 408: San Jose, California
408 is a telephone area code serving California, including San Jose, Silicon Valley. It is part of the North American Numbering Plan and is dialed with the country code +1.
Numbers beginning with 408 are located in California, United States (NANP region: South Bay). The code covers San Jose, Silicon Valley.
How to Dial Area Code 408
| Calling from | What to dial |
|---|---|
| Anywhere in the US or Canada | 1 408 XXX-XXXX (10-digit dialing: 408 + 7-digit number) |
| Local call inside the same area code | 7-digit number in most areas; 10 digits where an overlay code is active |
| From the UK or Europe | 00 1 408 XXX XXXX |
| From Australia | 0011 1 408 XXX XXXX |
| From a mobile phone anywhere | +1 408 XXX XXXX |
Whatever country you are calling from, the + symbol replaces the exit code. Save the contact as +1 408 XXXXXXX and it will dial correctly from any phone in the world.
Time Zone for Area Code 408
Calls to a 408 number ring in the America/Los_Angeles time zone, standard offset UTC-08:00. Daylight saving time applies here, so the offset moves forward one hour from March to November.
Cities and Communities Served by 408
The following places fall inside the 408 calling area:
Other Area Codes in California
These codes also serve California. Area codes are assigned by the North American Numbering Plan Administration (NANPA).
| Area Code | Cities / Coverage |
|---|---|
| 209 | Stockton, Modesto |
| 213 | Los Angeles (downtown) |
| 279 | Sacramento (overlay) |
| 310 | Los Angeles Westside, Santa Monica |
| 323 | Los Angeles (central) |
| 341 | Oakland (overlay) |
| 350 | Stockton (overlay) |
| 369 | North Bay (overlay for 707) |
| 415 | San Francisco |
| 424 | LA Westside (overlay) |
| 442 | Palm Springs (overlay) |
| 510 | Oakland, Berkeley |
| 530 | Redding, Chico |
| 559 | Fresno |
See all 38 area codes in California →
Frequently Asked Questions
Where is area code 408?
Area code 408 is in California, United States. It covers San Jose, Silicon Valley.
What time zone is area code 408 in?
Area code 408 rings in the America/Los_Angeles time zone (UTC-08:00 standard).
Do I need to dial 1 before area code 408?
Yes, for a long-distance call inside the US and Canada you dial 1 first, then 408, then the seven-digit number. The 1 is the North American long-distance trunk prefix — it is not the country code. From outside North America you dial your exit code then 1 then 408.
Is area code 408 toll-free?
No. 408 is a standard geographic area code, so normal long-distance rates apply unless your plan includes them. Toll-free NANP codes are 800, 833, 844, 855, 866, 877 and 888.