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by wmf 5326 days ago
If you want to be optimistic you could carry a /8 on your books at ~$150M. That's a drop in the bucket for most companies that hold /8s, so it's probably not worth arguing about.

The legacy class As were given out by Jon Postel just for asking; if you would ever need more than 256 subnets then a class B wouldn't be big enough so you got a class A.