408 Area Code
Covers San Jose and nearby communities in California.
(408) 555-0142Area code 408 map
Interactive coverage map for area code 408, centered on San Jose, California
37.3394, -121.8950
Open in OpenStreetMapArea code 408 coverage map — centered on San Jose. Shaded area shows the approximate reach around the primary city.
If you are trying to place San Jose, CA on the map, area code 408 is the one that covers it. It reaches roughly 1.5 million people across places such as San Jose, Sunnyvale, Santa Clara, Milpitas and more. The region observes Pacific time, so a number like (408) 555-0142 is on that clock right now. On the ground it spans Santa Clara. It shares its territory with the overlay code 669, which sit on the exact same map. Because the 408 region uses more than one area code, you must dial all ten digits — area code included — even for a local call. You do not, however, need to dial a leading 1 for calls within the US and Canada. On this page you'll find a live local clock for San Jose, an interactive coverage map, the cities and counties 408 serves, its overlay and neighboring codes, and tips on spotting 408 spam calls.
Cities covered by 408
Cities & neighborhoods
- San Jose
- Sunnyvale
- Santa Clara
- Milpitas
- Gilroy
- Morgan Hill
- Campbell
- Los Gatos
- Saratoga
Nearby & overlay area codes
Overlay codes (same area)
These share 408’s geography — a number in either code can be on the same street.
Neighboring codes
Codes for adjacent regions and metros.
Is a call from 408 a scam?
Because 408 covers a dense metro around San Jose, it's a common source of both real business calls and spam. Legitimate 408 calls come from local businesses, offices and neighbors; scam calls in this region tend to imitate delivery services, banks and utilities. Remember that caller ID is trivially spoofed — a scammer anywhere can make a 408 number appear on your screen — so the area code alone never proves a call is genuinely local.
Red flags to watch for
- Pressure to act right now, or threats of arrest, fines, or service being cut off.
- Requests to pay with gift cards, wire transfer, crypto, or a payment app.
- Asking for passwords, one-time codes, your SSN, or full card/bank numbers.
- A robocall or recording, or a number that won’t let you call back.
When unsure, hang up and call the organization back on a number you look up yourself.
Calling a 408 number from abroad
Every 408 number is a US/Canada +1 number. From a mobile anywhere, the simplest approach is to dial it in international format:
+1 408 555-0142If your phone can’t dial the +, replace it with your country’s exit code, then 1, then the number:
- UK, Germany, France & most of Europe
00 1 408 555-0142 - Australia
0011 1 408 555-0142 - Japan
010 1 408 555-0142 - Mexico
00 1 408 555-0142
Within the US and Canada you don’t need any of this — just dial the ten digits 408 555-0142.
Reverse phone lookup
Check any US or Canada number to see whether it's a working line, which carrier it sits on, whether it's mobile, landline or VoIP, and roughly where it's registered.
Shows carrier, line type and location. Owner name isn't available here.
Results are for personal, informational use only and may not be used for employment, credit, housing or tenant-screening decisions.
Area code 408: frequently asked questions
Where is the 408 area code located?
The 408 area code is located in California, centered on San Jose. It covers Santa Clara and nearby communities including San Jose, Sunnyvale, Santa Clara, Milpitas, Gilroy, Morgan Hill.
What time zone is 408 in?
Area code 408 is in the Pacific time zone (UTC-8 (PST) / UTC-7 (PDT)). You can see the exact current local time for San Jose on the live clock above.
What cities use area code 408?
Cities and areas that use 408 include San Jose, Sunnyvale, Santa Clara, Milpitas, Gilroy, Morgan Hill. Its primary city is San Jose, CA.
Do I need to dial 1 before 408?
For calls within the US, you do not need to dial a leading 1, but you do need all ten digits: 408 plus the seven-digit number. The 408 area requires ten-digit dialing because more than one area code serves it.
Is 408 a toll-free or scam number?
No — 408 is a normal geographic area code for San Jose, not a toll-free code (toll-free codes are 800, 833, 844, 855, 866, 877 and 888). A 408 number is not inherently a scam, but the code can be spoofed. See the spam-call section above for how to tell.
What are the overlay area codes for 408?
Area code 408 is overlaid by 669, meaning those codes cover the same geographic area.