Also getting calls from this number. Like others I don't answers calls i don't know. Now added to reject list. Probably costs you if you answer it so not prepared to take a risk. Have done some searching. It's a survey company calling from Egypt.
Said that he was calling from the *UK and just wanted to ask me 3 questions. I asked him 3 times what would these questions be regarding and then he finally replied "important national viewpoint"?! I then said that I wasn't interested and put the phone down.
*I thought +20 was a USA number.....!