Update – 8:02pm: As expected from the comments, Rogers has now confirmed the outage is national, not just limited to Ontario and Quebec. “We are experiencing a wireless outage nationally, affecting voice and some SMS service. We apologize & are working to resolve it ASAP.” Unfortunately there’s still no ETA on the service being restored.
Update – 8:21pm: Interesting heat map of the Rogers outage from CanadianOutages. This info is based on thousands of reports, which still have no root cause to the problem, but shows where most of the customers with problems are located.