Energia ENEL per la fibra ottica.
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.
Questo tipo di indagine di mercato è solo un pretesto per raccogliere dati personali.
Fanno finta di appartenere all'istituto di ricerca Ipsos per un'indagine sul lavoro in Italia, mah.
Ping通话连接稳定，但没有实际内容，可能是测试电话。
付费电话对方直接要求先付费才能继续，明显是收费陷阱。
Enel energia的销售热线打来，推销力度挺大的。
Ci sono dei sondaggi che indagano sugli ascolti radio, sai com'è.
来电显示未知，内容也不明朗，建议保持警惕。
来电显示未知，接通后没说话就挂了，感觉很不专业。
来电显示未知，内容毫无意义，建议直接挂断。
恐吓电话的频率太高，真的让人心烦。
恐吓电话的内容让人不安，直接挂掉最安全。
Supporto fornito da subito.it
Negocio Amazon Trading
Enel energia的恐吓电话让人感到压力，建议直接挂断。
Ping通话的质量一般，偶尔会出现掉线。
Solo un "hello" è stato udibile.
Three missed calls. According to https://www.airportsdata.net/airport-PVG-airlines/, this line belongs to a Lufthansa representative at Pudong Airport.
Probabile truffa, boh.
又是烦人广告，内容是促销某品牌的手机套餐，毫无用处。
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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.