Telia had problems hitting many service providers. Not a Cloudflare problem per se. Plenty of non-Cloudflare stuff affected like Reddit, AWS, Fastly, ...
Check out the dip in requests to Reddit: http://www.redditstatus.com/
Check out the dip in requests to Reddit: http://www.redditstatus.com/
Fastly was on top of it and routed around the issue quickly.