Home Phone Call random numbers

[Frans]

Hi,
Since connected to NBN with ported home number, I've been getting numerous phone call from random people stating they received a missed call from this silenced number. Is it possible this number have been "hijacked" for spam calling? Is there a way of investigate this?
thanks.
Frans

[Ahra_G]

Hi @Frans, 

Welcome to the Community! 

The scenario is rare case. We're more than glad to check on this for you. 

Please provide us with your Customer ID or the landline number via private message so we can assist you accordingly. 

Thanks!