Everything you need to know about area code 831 in California
QUICK FACTS
California
Pacific Time Zone
Split from existing code
Estimated residents served
California
Primary code for this region
ABOUT THIS AREA CODE
Area code 831 covers the Central California coast including Monterey, Santa Cruz, and Salinas. It serves the Monterey Bay Aquarium, Pebble Beach, and the Steinbeck Country agricultural region.
Phone numbers with the 831 area code follow the format (831) XXX-XXXX, where the next three digits represent the local exchange. The 831 area code is part of the North American Numbering Plan (NANP) and is regulated by the Federal Communications Commission (FCC).
If you receive a call from a 831 number that you don't recognize, you can search it using the lookup tool above. While the 831 area code legitimately serves millions of residents and businesses in the Monterey area, scammers sometimes spoof local area codes to make their calls appear more trustworthy. Always verify unfamiliar numbers before returning calls or sharing personal information.
The Monterey region served by area code 831 is one of the most significant areas in California. As a primary geographic code, 831 has been the main identifier for this region since it was introduced in 1999.
For detailed information about any phone number in the 831 area code, including owner identification, carrier data, and spam reports, use our search tool above or visit one of our trusted lookup providers.
CITIES & COMMUNITIES
SPAM & SCAM ALERTS
These are frequently reported scam patterns from phone numbers using the 831 area code. Scammers often spoof area codes, so a call appearing to come from 831 may originate elsewhere.
Callers impersonate a grandchild in trouble, claiming to need bail money or emergency funds wired immediately.
Automated messages claim a package could not be delivered and direct you to a phishing website to reschedule delivery.
Callers offer fake student loan forgiveness programs, collecting personal and financial information under the pretense of reducing your debt.
Stay Safe: Never share personal information with incoming callers. If suspicious, hang up and search the number above.
FREQUENTLY ASKED QUESTIONS
Area code 831 serves Monterey, California. Area code 831 covers the Central California coast including Monterey, Santa Cruz, and Salinas. It serves the Monterey Bay Aquarium, Pebble Beach, and the Steinbeck Country agricultural region.
Area code 831 is in the Pacific timezone. Calls from 831 numbers originate from the Monterey region.
Not necessarily. Area code 831 serves many people in Monterey. However, scammers can spoof any area code. If you receive a suspicious call from a 831 number, search it above before calling back.
Area code 831 was created in 1999. It serves as the primary geographic code for its region.
RELATED AREA CODES
WHO CALLED ME
If you received an unknown call from a 831 number, use our dedicated lookup page to identify the caller and check for scam reports.
Who Called Me From 831? →