Open Fiber的来电感觉挺靠谱的，语气专业。
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.
Offrono una proposta energetica per ex clienti di Enel Energia al fine di riattirarli; ho verificato il numero sul sito di Enel Energia e conferma che è un numero del servizio clienti partner di vendita
390239623714
未知
这号码经常未知来电，挺让人不安的。
这条诈骗短信非常扰人，建议大家直接忽略。
390239623714
未知
来电显示未知，内容也不清楚，还是保持警惕吧。
我收到未经请求的中国茶广告，简直是烦人的垃圾信息！
Ricevo pubblicità di tè e violazione della privacy da Contact att hello-young.com, Alice att cifbuy.com, (DE.shoppingmall) provenienti dalla Cina.
390239623714
未知
来电显示未知，感觉像是垃圾电话，建议直接挂。
收到一条诈骗短信，内容夸大其词，提醒大家不要轻信。
Ping通话没有任何实际内容，感觉被浪费了时间。
Weibo的未知来电，没有明确说明目的，挂断后没有回讯息。
登录账户信息被泄露。
Finge di essere Enel Energia e offre di testare la fibra ottica con una tariffa…
Mettendo da parte la mia opinione personale su Open Fiber e i tecnici, confermo che non si tratta di truffa, spam o phishing, ma semplicemente di Open Fiber che vi contatta per l’attivazione delle linee in fibra.
Amplifon的广告太频繁，令人厌烦。
Enel energia的广告太烦人了，一直在打骚扰电话。
Riceviamo chiamate insistenti che annunciano una vincita immaginaria in una lotteria.
我被中国茶的广告淹没，所提供的号码（含中国区号）关联到名为 "DE.Shoppingmall" 的 eBay 商户。
Spedisco, yeah.
Deliveroo的来电提醒送餐进度，还算及时。
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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.