Can i buy an Iphone 4 and then use it on a Koodo network?

I live in Alberta and if i buy it where should i do this

Hi yes you can easily use iphone 4 with kodoo sim only if your iphone 4 is unlocked one .Else if the iphone 4 is locked to some other network then until you unlock it you can't freely use it with kodoo sim ..You can easily unlock your iphone 4 with the help of providers like Unlocking4U.com here they are rendering remote unlocking service to unlock all model iphone from network lock ..After unlocking it you can freely use it with any GSM sim...