Got several calls from the same number during wee hours and very disturbing. I use a roaming sim from my home country. I wonder how Rogers being the service provider can do something about it.

I have had this number call me but it was from a relative serving in Afghanistan calling me from a satilite phone...

This is the problem with Service provider such as Rogers. Whenever you are roaming in Canada with a GSM phone from an overseas service provider, you automatically get to roam on Rogers network and you really do not have a choice to select another operator in such a huge country. I cannot believe that monopoly still exists in this developed part of the world.
So whenever I get call from either Canada or abroad, this routing number (416) 956-7468 shows on the caller ID automatically.
Rogers does not support the Caller ID facility for those roaming onto their network in Canada and this is because Caller ID information is not being internationally exchanged and standardised by Rogers.

PERSONAL

Got a call last night at 1am, picked it up and there was nothing on the other line.  Tried to phone it back but it said it was unassigned.

called me at 10pm. When answered, nobody spoke.