[dogecoinbase]

We do/did! Class E space (240.0.0.0/4) exists and is entirely unused. There was a proposal in 2008-ish to try and convert it to regular IP space for allocation, but the agreement was that it would be too much work (many stacks default drop class E packets) and we should focus on transitioning to IPv6.

[bArray]

Thanks, I wasn't really aware of this. Class E wouldn't add too much to the IP address space if I understand this correctly?

I was thinking more along the lines of a bit being flipped would mean the next 8 bytes are an IP and not four, for example.

From my limited understanding, I don't think they reserved a bit in the address space?