831 Area Code
Covers Salinas and nearby communities in California.
(831) 555-0142Area code 831 map
Interactive coverage map for area code 831, centered on Salinas, California
36.6777, -121.6555
Open in OpenStreetMapArea code 831 coverage map — centered on Salinas. Shaded area shows the approximate reach around the primary city.
Calls tagged with area code 831 come from Salinas and nearby communities in California. It reaches roughly 271,000 people across places such as Salinas, Santa Cruz, Watsonville, Hollister and more. The region observes Pacific time, so a number like (831) 555-0142 is on that clock right now. On the ground it spans Monterey, Santa Cruz, San Benito. It is not currently paired with an overlay code. Local calls inside the 831 area can generally be placed with ten digits, and you do not need a leading 1 for domestic calls. On this page you'll find a live local clock for Salinas, an interactive coverage map, the cities and counties 831 serves, its overlay and neighboring codes, and tips on spotting 831 spam calls.
Cities covered by 831
Cities & neighborhoods
- Salinas
- Santa Cruz
- Watsonville
- Hollister
- Marina
- Monterey
- Seaside
Nearby & overlay area codes
Overlay codes (same area)
These share 831’s geography — a number in either code can be on the same street.
831 has no overlay code right now.
Neighboring codes
Codes for adjacent regions and metros.
Is a call from 831 a scam?
Area code 831 serves Salinas and the surrounding area, so most calls are ordinary local and business traffic. As everywhere, spam and robocalls do use 831 numbers, frequently by spoofing a local-looking caller ID to boost pickup rates. The area code itself tells you nothing about who is really calling, so judge the call by what's said, not the number.
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 831 number from abroad
Every 831 number is a US/Canada +1 number. From a mobile anywhere, the simplest approach is to dial it in international format:
+1 831 555-0142If 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 1 831 555-0142 - Australia
0011 1 831 555-0142 - Japan
010 1 831 555-0142 - Mexico
00 1 831 555-0142
Within the US and Canada you don’t need any of this — just dial the ten digits 831 555-0142.
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 831: frequently asked questions
Where is the 831 area code located?
The 831 area code is located in California, centered on Salinas. It covers Monterey, Santa Cruz, San Benito and nearby communities including Salinas, Santa Cruz, Watsonville, Hollister, Marina, Monterey.
What time zone is 831 in?
Area code 831 is in the Pacific time zone (UTC-8 (PST) / UTC-7 (PDT)). You can see the exact current local time for Salinas on the live clock above.
What cities use area code 831?
Cities and areas that use 831 include Salinas, Santa Cruz, Watsonville, Hollister, Marina, Monterey. Its primary city is Salinas, CA.
Do I need to dial 1 before 831?
You generally do not need to dial a leading 1 for domestic calls to 831. Ten-digit dialing (the 831 code plus the seven-digit number) is the safest habit.
Is 831 a toll-free or scam number?
No — 831 is a normal geographic area code for Salinas, not a toll-free code (toll-free codes are 800, 833, 844, 855, 866, 877 and 888). A 831 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 831?
Area code 831 does not currently have an overlay code; it is not layered on top of another code in the same area.