3864 2021 — Spam Report / 垃圾電話報告

About this number / 關於此號碼

3864 2021 often repeats insurance sales free-consultation or premium-comparison offers, which is why many users read it as a common insurance promotion caller. In the available reports, 3864 2021 usually focuses on 保險推銷 related promotions or checks. When 3864 2021 appears in the call log, many users review available reports first.

社群回報顯示 3864 2021 多以保險推銷 業務跟進與保障分析邀請作招徠，屬常見的保險促銷來電。 回報資料中，3864 2021 的目的多與 保險推銷 推廣或核實有關。 當 3864 2021 出現於通話紀錄時，不少人會先查閱舉報內容。

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.