These people are calling you from Winnipeg Manitoba CANADA. Their direct number with area code is 204-989-8235
is a land line based in Winnipeg, MB
The registered service provider is MTS Communications.
I would encourage anyone who may wish to contact MTS the service provider to visit their website and review the list of Execs.
It is a point of considerable concern if this company obtained and disclosed your number unlawfully. In CANADA the Federal Privacy Commissioner has the responsibility to enforce the provisions of the law in regards to this.