{"area_code":"531","is_legitimate_code":true,"explanation":"Area code 531 is a legitimate Nebraska area code. The code itself is not a scam, but scammers can spoof any number — including 531 — 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":14,"total_complaints":60,"top_subjects":["Other","Calls pretending to be government, businesses, or family and friends","No Subject Provided"],"most_complained":[{"number":"(531) 200-8831","complaints":11,"url":"https://areacode.fyi/number/5312008831"},{"number":"(531) 278-6965","complaints":6,"url":"https://areacode.fyi/number/5312786965"},{"number":"(531) 205-2803","complaints":5,"url":"https://areacode.fyi/number/5312052803"},{"number":"(531) 484-4729","complaints":5,"url":"https://areacode.fyi/number/5314844729"},{"number":"(531) 867-1164","complaints":4,"url":"https://areacode.fyi/number/5318671164"}],"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/531/scam","source":"North American Numbering Plan Administrator via areacode.fyi","data_date":"2026-10-21"}