Monday afternoon update:
We are still working with Cloudflare on this and you should be getting replies to your CCP support tickets shortly with a request from Cloudflare for more information.
We are also working with WOW! on this matter and they just said in an email to me:
If your customers haven’t already, could you have them call in to WOW to report their problems and include traceroutes to the affected sites?
That would be a traceroute to 172.65.201.188
Update:
When they call into the Call Center (866 496 9669), please have them reference PRB0043017 in relation to this issue.