Is a Call From Area Code (303) a Scam?
Denver, CO
Reviewed by the Cautellus team · Last updated May 30, 2026
About Area Code 303
Area code 303 covers Denver and the surrounding Front Range communities. It is spoofed by scammers who target Colorado residents with local-appearing calls. Common schemes include utility impersonation and marijuana-industry-related scams unique to the state.
Geographic Trust Factor
Scammers spoof 303 to appear local to Denver, CO residents. People are far more likely to answer calls that look like they're coming from their own area — this is called "neighbor spoofing."
If a message or caller from (303) is pressuring you to act, verify it first with our free scanner.
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Scan Now — It's FreeKnown Scam Patterns
What to Do
- 1Verify utility and government calls by hanging up and calling back on a known number.
- 2Do not provide personal information to unsolicited callers.
- 3Block numbers that repeatedly call you.
- 4Report scams to the Colorado Attorney General.
Related Area Codes
Think you've received a scam?
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