這是一種騙局，冒充快遞人員或警察執行詐騙行為。
Reverse Phone Lookup in Mainland China — Recent Community Reports
Check unknown Chinese numbers with recent reports (Beijing, Shanghai, Guangzhou, Shenzhen) and share your experience.
Unknown calls in Mainland China
Unsure about a number from mainland China? Explore concise community notes to judge calls and texts. In Beijing, Shanghai, Guangzhou and Shenzhen you’ll see both legitimate callbacks (deliveries, banking, appointments) and waves of robocalls or phishing. Prefixes like 010 (Beijing), 021 (Shanghai), 020 (Guangzhou), 0755 (Shenzhen) and mobile 13x/15x/18x ranges are useful context but not proof of origin due to portability and VoIP.
Verification: return calls via the official number listed on the provider’s website/app, check in‑app notices and never share one‑time codes by phone. Use device/carrier blocking for repeat issues and leave a short, factual note here to help others.
Tentativo di truffa
Non so cosa vogliano, ma non mi interessa.
又一个诈骗短信电话，真的很烦人！
收到一个未知号码的诈骗短信，内容很可疑，提醒大家注意！
862037164238
Telemarketing
★
★
★
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★
每天都收到这个号码的电话推销，真是受不了！
Banca Friuladria的电话，内容挺明确的，没什么问题。
不知道谁的电话，没什么印象。
Causing significant losses
Recibo múltiples llamadas silenciosas al día, y el número no está registrado
Ricevo chiamate da questo numero, ma non ricevo mai risposta
詐騙短信，千万不要相信!
Numero affidabile
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★
DJI
È uno dei numeri con cui AutoHero ti ricontatta dopo la tua richiesta di informazioni su un veicolo in vendita.
A very friendly operator called me for a brief survey about my experience with my bank, and our conversation lasted about 5 minutes.
Non so chi sia, e non so da dove venga la chiamata, pero' non rispondo, forse e' un telemarketing, pero' non sono sicuro
这是一个市场调查电话，问题还挺有意思的。
Doxa的市场调查电话，感觉有点长，但还可以接受。
Doxa的市场调查，挺专业的，但有点长，没时间听完。
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FAQ — China
How to verify callers in China?
Use the official number from the website/app; avoid calling back the unknown number and check in‑app messages.
Do prefixes prove location?
No. Portability/VoIP make 010/021/020/0755 and 13x/15x/18x ranges unreliable as proof.
Common patterns?
Delivery updates, bank callbacks, 2FA codes; robocalls, parcel/account phishing and scripted sales.
Helpful report details?
Caller type, purpose, date/time, and cues that guided your decision.
Popular area codes
Most-reported area codes in China. View all area codes at the bottom.