Earlier quoted context omitted.
The Cloudflare blog suggests it's BGP problems: https://blog.cloudflare.com/cloudflares-view-of-the-rogers-c...
How does that relate to the Rogers cell service outage, though? Surely SMS doesn't require BGP? It feels like there's a big, fundamental problem affecting a variety of Rogers infra, where BGP and cell problems are just symptoms we can observe. CloudFlare says it looks more like a failure than an attack; I'm not entirely convinced.
I’m in Canada at the moment with my UK SIM and using Rogers internet just fine. Completely unaware of any problems until my friends warned me about needing cash and I then double checked and still, phone internet via Rogers on a roaming SIM worked fine.
My guess is their voice, sms etc all are IP these days which was impacted by their BGP issues. Whereas my UK carrier roaming gives me a UK IP still, unrelated to Rogers advertised blocks.