Scam calls from 831 numbers

Patterns documented by FTC/FCC · numbering data as of July 28, 2026.

Scam calls that display a Salinas-area 831 number usually do not originate there. Spoofing lets a caller present any digits, and 831, with its 403 active prefixes, offers plenty of plausible-looking combinations. Below are the documented schemes most commonly reported behind local-looking calls.

Reporting matters — FTC and FCC complaints are aggregated into enforcement actions against robocall operations.

Documented patterns behind 831-looking calls

Caller ID spoofing

The caller deliberately falsifies the number shown on your caller ID display to disguise their identity, often imitating a local number, a government agency, or a well-known company.

Signs: the displayed number looks local or familiar, but the caller is a stranger or a recording; a callback to the displayed number reaches someone who never called you. Full pattern →

Neighbor spoofing

A form of caller ID spoofing in which the falsified number matches your own area code and often your NXX prefix, so the call appears to come from a nearby household and feels safe to answer.

Signs: the incoming number shares your area code and first three digits of your local number; answering leads to a robocall, silence, or a sales/scam pitch. Full pattern →

One-ring (Wangiri) callback scam

Your phone rings once and stops. The scammer hopes curiosity makes you call back a number that routes to an international premium-rate line, generating per-minute charges that are shared with the scammer.

Signs: a missed call that rang only once, often late at night; repeated one-ring calls from the same or similar numbers. Full pattern →

IRS impersonation

A caller claims to be from the Internal Revenue Service, says you owe back taxes, and threatens arrest, deportation, or license revocation unless you pay immediately — typically by gift card, wire transfer, or cryptocurrency.

Signs: demands for immediate payment by gift card, prepaid debit card, wire, or crypto; threats of arrest or lawsuits for unpaid taxes. Full pattern →

Social Security impersonation

The caller pretends to be from the Social Security Administration and claims your Social Security number has been suspended or linked to a crime, pressuring you to confirm the number or move money to 'protect' it.

Signs: claims that your ssn has been 'suspended' — ssns are never suspended; requests to confirm your ssn or move money to gift cards or crypto for 'safekeeping'. Full pattern →

Reporting channels

FAQ

Are all calls from 831 numbers scams?

No — 403 real prefixes serve Salinas subscribers. The point is that the displayed code alone proves nothing either way; judge the call's content and verify independently.

Can I block the whole 831 area code?

Some phones and carrier apps allow prefix-based blocking, but scammers rotate codes, so blanket blocking mostly costs you legitimate calls. Silencing unknown callers works better.

Where do I report a scam call from a 831 number?

File at ReportFraud.ftc.gov (fraud and losses) and the FCC Consumer Complaint Center (spoofing and robocalls). Include the displayed number, date and what was said.