2x /24's went offline as they were being reclaimed by Path, the IP broker we used for these 2 subnets.
At the time, we were unaware Path had terminated our service.
However, upon speaking with Path it seems a singular email was sent out giving us 3 weeks notice, which we unfortunately missed. Path understood the confusion we had and gave us the subnets back so we may migrate our clients over a week.
We apologize for the inconvenience.