All people should be very wary of calls from this number. The call is actually from Tunisia & appears on phone as (02) 1675 826154. Phone rings once & then hangs up. Do not phone the number back.
Refer to this website re this IMPORTANT WARNING.
https://www.dailymail.co.uk/news/article-7532183/Missed-phone-call-scam-international-numbers-steals-thousands-Australians.html