陌生号码打来，内容模糊不清，让人不敢轻易回拨。
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.
恐吓电话内容吓人，建议直接拉黑。
未知的市场调查来电只是在浪费时间，没有提供任何有用信息。
未知来电总是让人犹豫，建议先查证再回拨。
市场调查的电话总是打断工作，感觉很不专业。
Ozeol International的电话听起来很专业，值得信赖。
Mi ha rivolto domande strane sul sondaggio radio, chiedendo del mio ruolo in marketing e se potesse parlare con ragazzi tra 14 e 17 anni, poi è sparita, tipo.
付费电话被扣费后才发现是诈骗，真是糟心。
Ho ricevuto una chiamata per un questionario radiofonico.
Ho ricevuto una chiamata su un numero conosciuto solo dai miei due figli, usato esclusivamente via chat con uno di loro, lol.
È IPSOS, eh.
这类烦人广告电话真让人头疼，建议直接拦截。
值得信赖的电话一般服务态度好，信息也比较可靠。
Usano il pretesto di ricerche di mercato per domandare informazioni irrilevanti. Molto scadenti.
这通恐吓电话口气凶狠，完全没有可信度，直接挂断比较好。
Nach Meldung bei der Deutschen Bank wollte jemand etwas von meinem Mann, doch sie verriet ihr Anliegen nicht!!! Sie plant, etwas schriftlich zu senden; darauf bin ich gespannt.
Molto perseverante.
È un’indagine sugli ascolti radio, eh.
Alle 21.23 ho ricevuto una chiamata; ho risposto dicendo che non mi sembra normale chiamare a quell'ora e dall’altra parte ho sentito: “eh noi lavoriamo fino alle 21.30”.
Si trattava di una ricerca di mercato priva di utilità.
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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.