Area Code 831
Monterey, CA — California
Area code 831 serves Monterey and California. Get a local 831 number to build instant presence in this market.
Split from 408 in 1998 to serve the Monterey Bay region. Monterey and Santa Cruz anchored the code.
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 831 cover?
Area code 831 serves communities across California. Cities below represent the primary coverage area per the NANP.
- Monterey
- Salinas
- Santa Cruz
- Watsonville
- Carmel
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 831
Split from 408 in 1998 to serve the Monterey Bay region. Monterey and Santa Cruz anchored the code.
Why get a 831 area code number?
A local 831 number gives your business a genuine connection to the California market — without the overhead of a physical location.
Local Market Access
Reach Monterey customers and businesses with a familiar local number. The Salinas Valley is the 'Salad Bowl of the World,' supplying much of America's lettuce and produce. Produce growers and shippers rely on a 831 number for this agricultural-industry credibility.
Professional Credibility
A 831 number anchors your business in Monterey 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 831 number keeps your outreach out of the spam folder.
Flexible Operations
Start with one 831 number and add more as you grow — all managed from a single letsdial dashboard.
How to obtain a 831 phone number.
Step 01 · Sign up
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Benefits of a local California number
A 831 area code tells California customers you're local and easy to reach.
- Local 831 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 831 business line.
Why local numbers win
Frequently asked about 831
Area code 831 covers Monterey, Salinas, Santa Cruz, Watsonville, Carmel in California. It is the primary area code for this region.
Ready to call California your market?
Get a local 831 number for your business in minutes. No contracts, no hardware — just a trusted local presence in California from day one.
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