Scam calls from 670 numbers

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

A 670 caller ID is easy to fake. Neighbor spoofing — matching your area code and even your prefix — is designed to get local-looking calls answered. The schemes below are documented by the FTC and FCC and map what typically hides behind such calls.

If any of these match a call you received, report it: the FTC's fraud reports and the FCC's complaint center are the channels that feed enforcement.

Documented patterns behind 670-looking calls

Package delivery callback scam

A call or voicemail claims a package could not be delivered and asks you to call back or 'press 1', leading to phishing for personal data or premium-rate charges. The same lure is common by text (smishing).

Signs: delivery notice for a package you never ordered; callback number that does not match the carrier's official lines. Full pattern →

Immigration (USCIS) impersonation

Callers impersonate USCIS or 'immigration officers', claim a problem with your status or paperwork, and demand payment or personal information under threat of deportation.

Signs: threats of deportation unless a 'fee' is paid by phone; spoofed caller id showing uscis numbers. Full pattern →

Amazon / big-brand imposter robocall

A robocall claims a large purchase or suspicious activity on your Amazon (or other retailer) account and asks you to 'press 1' to dispute it, connecting you to an agent who harvests card and login data.

Signs: recording about an order you never placed; transfer to an 'agent' who asks for card numbers or remote access. Full pattern →

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 →

Reporting channels

FAQ

Are all calls from 670 numbers scams?

No — 35 real prefixes serve Saipan 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 670 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 670 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.