{"area_code":"858","is_legitimate_code":true,"explanation":"Area code 858 is a legitimate California area code. The code itself is not a scam, but scammers can spoof any number — including 858 — 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":70,"total_complaints":275,"top_subjects":["Other","Calls pretending to be government, businesses, or family and friends","Reducing your debt (credit cards, mortgage, student loans)"],"most_complained":[{"number":"(858) 766-5984","complaints":10,"url":"https://areacode.fyi/number/8587665984"},{"number":"(858) 335-5520","complaints":10,"url":"https://areacode.fyi/number/8583355520"},{"number":"(858) 203-1319","complaints":9,"url":"https://areacode.fyi/number/8582031319"},{"number":"(858) 252-6010","complaints":8,"url":"https://areacode.fyi/number/8582526010"},{"number":"(858) 394-0910","complaints":8,"url":"https://areacode.fyi/number/8583940910"}],"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/858/scam","source":"North American Numbering Plan Administrator via areacode.fyi","data_date":"2026-08-02"}