{"area_code":"303","is_legitimate_code":true,"explanation":"Area code 303 is a legitimate Colorado area code. The code itself is not a scam, but scammers can spoof any number — including 303 — so individual calls can still be fraudulent.","spoofing_note":"An area code only shows where a number is registered, not who is calling. Caller ID can be spoofed, so the code alone is not proof a call is local, safe, or fraudulent.","ftc_complaints":{"numbers_with_complaints":136,"total_complaints":645,"top_subjects":["Other","Calls pretending to be government, businesses, or family and friends","Dropped call or no message"],"most_complained":[{"number":"(303) 468-4065","complaints":25,"url":"https://areacode.fyi/number/3034684065"},{"number":"(303) 309-1163","complaints":20,"url":"https://areacode.fyi/number/3033091163"},{"number":"(303) 395-0849","complaints":17,"url":"https://areacode.fyi/number/3033950849"},{"number":"(303) 209-1177","complaints":10,"url":"https://areacode.fyi/number/3032091177"},{"number":"(303) 226-9260","complaints":10,"url":"https://areacode.fyi/number/3032269260"}],"note":"These are FTC Do Not Call complaints filed about specific numbers shown with this area code — frequently spoofed. The area code itself is not a scam.","source":"FTC Do Not Call Reported Calls"},"advice":"Judge the call by what it asks for (urgency, gift cards/crypto, confirming codes or SSN), not by the area code. When unsure, hang up and call back on an official number.","canonical_url":"https://areacode.fyi/303/scam","source":"North American Numbering Plan Administrator via areacode.fyi","data_date":"2026-08-02"}