{"area_code":"640","is_legitimate_code":true,"explanation":"Area code 640 is a legitimate New Jersey area code. The code itself is not a scam, but scammers can spoof any number — including 640 — 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":18,"total_complaints":61,"top_subjects":["Other","Reducing your debt (credit cards, mortgage, student loans)","Dropped call or no message"],"most_complained":[{"number":"(640) 235-1650","complaints":6,"url":"https://areacode.fyi/number/6402351650"},{"number":"(640) 666-2034","complaints":5,"url":"https://areacode.fyi/number/6406662034"},{"number":"(640) 650-2164","complaints":4,"url":"https://areacode.fyi/number/6406502164"},{"number":"(640) 224-9534","complaints":4,"url":"https://areacode.fyi/number/6402249534"},{"number":"(640) 202-1136","complaints":3,"url":"https://areacode.fyi/number/6402021136"}],"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/640/scam","source":"North American Numbering Plan Administrator via areacode.fyi","data_date":"2026-08-02"}