{"area_code":"406","is_legitimate_code":true,"explanation":"Area code 406 is a legitimate Montana area code. The code itself is not a scam, but scammers can spoof any number — including 406 — 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":48,"total_complaints":190,"top_subjects":["Other","Reducing your debt (credit cards, mortgage, student loans)","Calls pretending to be government, businesses, or family and friends"],"most_complained":[{"number":"(406) 431-6997","complaints":15,"url":"https://areacode.fyi/number/4064316997"},{"number":"(406) 545-3100","complaints":10,"url":"https://areacode.fyi/number/4065453100"},{"number":"(406) 665-4304","complaints":10,"url":"https://areacode.fyi/number/4066654304"},{"number":"(406) 698-9561","complaints":7,"url":"https://areacode.fyi/number/4066989561"},{"number":"(406) 813-3108","complaints":7,"url":"https://areacode.fyi/number/4068133108"}],"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/406/scam","source":"North American Numbering Plan Administrator via areacode.fyi","data_date":"2026-09-13"}