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Re:Ask HN: What would you do with a Class C IP block? by jrockway on Saturday August 22, 2009 @11:43PM (#780143)
255 IPs is a drop in the ocean.

Companies with Class As (16,777,214 addresses) are the problem.

Re:Ask HN: What would you do with a Class C IP block? by Kadin on Sunday August 23, 2009 @03:27AM (#780325)
The legacy Class As really aren't a significant issue either. By the time you subtract out all the effort that the clawback itself would involve (nontrivial reconfiguration of quite a few major corporate and government networks), it would probably be a wash or quite close to it versus just trying to work on IPv6 -- which finally seems to be getting some traction.

At best I've heard a few extra months added at current burn rate estimates. Hardly worth the knock-down, drag-out fight that it would involve.