Who called from 21631366777

Been getting calls on my work landline from this number for weeks. No message and if I pick up a non English speaking individual just repeats my name back at me & hangs up.

I also got call from the same no several times and asked me whether I know arabic or not.. when i said no they disconnected the call..

I'm receiving deally call from this number+21631366777 how is this

I things there are scamer+21631366777

Im Receiving this Call Daily.. I answered the call nd asked weather i know Arabic. When i Said No. They Disconnected.