Question 1

Who calls from +65 643 4?

Accepted Answer

+65 643 4 is a phone number with the 643 prefix in Singapore. It has no spam reports yet, but you can check other users' comments below. Check the comments to find out who might be behind this call.

Question 2

Is +65 643 4 a spam number?

Accepted Answer

There aren't enough reports yet to confirm whether +65 643 4 is spam. Check the risk score and the community comments.

Question 3

Is it safe to call +65 643 4 back?

Accepted Answer

If you don't recognise the number and it has negative reports, it's best not to call +65 643 4 back. Avoid sharing personal or banking details with unknown numbers.

Question 4

How can I block +65 643 4?

Accepted Answer

On iPhone, go to Recents in the Phone app, tap the (i) next to the number and choose 'Block this Caller'. On Android, long-press the number in your call history and select 'Block number'. You can also use the NoCall app to automatically block calls like +65 643 4.

Question 5

Where can I report a suspicious call?

Accepted Answer

You can report +65 643 4 directly on this page using the report button. Your contribution helps other users identify unwanted calls.

+65 643 4

Frequently asked questions