CSL
Suspicious- Phone / 電話
- 2734 8521
- Call Type / 呼叫類型
- Cold Call / Cold Call
- Industry / 行業
- Telecommunications and broadcasting / 電訊廣播
- Updated / 更新日期
- 2025-02-12
- Match Type / 匹配類型
- Exact match / 完全匹配
2734 8521 — Spam Report / 垃圾電話報告
About this number / 關於此號碼
Many reports treat 2734 8521 as a telecom sales nuisance call, typically framed around CSL branded renewals, porting, 5G, or broadband upgrades. Stay calm, hang up on 2734 8521, and verify through official channels for added safety. Even when calls go unanswered, 2734 8521 is logged by users as a reference point.
2734 8521 常以CSL 名義的續約、轉台、5G 或寬頻升級主動接觸，屬令人厭煩的續約推廣來電。 保持冷靜並掛斷 2734 8521，再透過官方途徑核實會較安全。 即使未必每次接聽，2734 8521 仍被不少用戶記錄下來作參考。
What to do / 應對方法
Do not return calls to unknown numbers. If you did not expect this call, it is best to ignore it. You can block this number on your phone.
不要回撥陌生號碼。如果你沒有預期此來電，最好忽略它。你可以在手機上封鎖此號碼。
How to block / 如何封鎖
iPhone: Settings → Phone → Blocked Contacts → Add New.
Android: Recent Calls → tap the number → Block / Report spam.