Check unknown Chinese numbers with recent reports (Beijing, Shanghai, Guangzhou, Shenzhen) and share your experience.
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.
接到这个号码的电话，明显是诈骗，千万别理会！
烦人广告电话，希望能屏蔽掉。
这个号码打来的 Ping 通话很奇怪，不知道是什么意思。
不认识这个号码，挂断了。
未知号码，未知类型，直接挂断了。
未知号码，无法确定是什么类型的电话。
恐吓电话，很吓人，不敢接。
TIM的烦人广告电话，根本不需要这种广告电话。
总是收到这样的骚扰电话，真是烦人！
来电显示正常，感觉还挺正式的。
接到一个正式的电话，内容比较靠谱。
Seriös call, but I didn't answer. Not sure who it was or what they wanted.
未知号码和类型，可能是正常的电话，也可能是骚扰电话。
Chiamano più volte e se si richiama, si rischia di spendere molto
又一个烦人广告电话，真烦人!
Je comprends que leur objectif est de vendre des contrats, mais cela devrait être le consommateur qui les cherche et non l'inverse
I didnt answer the call, but when i called back it was a citibank voicemail
号码未知，但通话内容还挺正常的，没什么问题。
未知号码，但打来的是付费电话，感觉有点可疑。
Unknown的讨债公司，挺吓人的。
Use the official number from the website/app; avoid calling back the unknown number and check in‑app messages.
No. Portability/VoIP make 010/021/020/0755 and 13x/15x/18x ranges unreliable as proof.
Delivery updates, bank callbacks, 2FA codes; robocalls, parcel/account phishing and scripted sales.
Caller type, purpose, date/time, and cues that guided your decision.