市场调查的电话太过打扰，根本不想参与。
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.
Llamada para acceder a servicios.
接到的恐吓电话让人不安，最好直接挂断。
Si tratta di una ricerca di mercato, eh.
付费电话要求先付款后服务，明显是诈骗手段，请勿上当。
付费电话费用高且无用，建议大家避开。
市场调查电话有时能提供优惠信息，但频繁来电也会打扰。
未知来源的来电让人不安，最好先核实对方身份再决定是否接听。
Affermano di rappresentare l’ambasciata, poi riattaccano.
收到的垃圾电话太多，真的很烦人。
这通电话根本没有任何介绍，让人摸不清底细，建议直接挂断。
来电显示未知，内容也不明，建议直接挂断。
audionova的销售热线推销力度太强，感觉不太可信。
恐吓电话的语气让人不安，建议立刻挂断并记录号码。
audionova的付费电话收费高，建议先了解清楚再决定。
来电信息模糊，建议小心处理。
È un'indagine Ipsos sull’ascolto della radio, mah.
Registrazione della voce.
这是电话垃圾信息。
又是一次无聊的广告推销，打扰到正常生活。
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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.