no message but appears that new numbers(+221766756404 and 0256205481060) are coming from Senagal and other regions near there, ring for no more than 4 seconds mostly

Showed as being from Lismore NSW. They hung up after a couple of rings. I blocked the number

Had a few calls by this number, when I try to call back it says number does not exist.
Rang for only a few rings then hung up

I received this number many times! I just ignore and delete it.

nuisance

Stopped ringing after 4 rings.

This number called for a few rings then went off. I also had a strange call few days earlier from +221 766756404 from Senegal

I don't tend to answer calls i don't expect so I didn't answer.

I find it a bit disconcerting as I've only just come back from travelling overseas so wondering if I got hacked into via the airport wifi's or hotel free wifi's I was staying at.

Weird phone number
Showed as being from Lismore nsw
They hung up after a couple of rings

Called, rand twice, I picked up. No one there. Nuisance call.