This is very unusual, most of the time they are spread over 15-20 IPs at a time. When one IP goes down, the failing domains are usually switched to another IP within minutes.
But today has been an exception. For several hours, the address 18.104.22.168 has been failing to respond with web pages for our old favorites. Favorites like
Canadian Health&Care Mall
Canadian Neighbor Pharmacy
My Canadian Pharmacy
Toronto Drug Store
Canadian Family Pharmacy
Whoever is meant to be minding the shop must be distracted by a local sporting event.
Mind you, there are other events creating a distraction in the Ukraine.