Actually, the last I heard is that they will sell down to a /24.
No. See http://www.arin.net/regserv/feeschedule.html "The minimum block of IP address space assigned by ARIN is a /20." Also, they don't have any special-case handling that I am aware of. I tried to get a private /24 to use for the topology examples in my books and couldn't get one. ARIN outright refused the request even though I could prove the need for it, and even though I didn't care about global routing or reachability. I was also told that any /24 that I might manage to acquire would be revoked instead of transferred to me. I honestly believe that ARIN is funded by stock ownership in NAT provder technologies. They are the primary reason that we have NAT and RFC 1918 problems on the net everyday. -- Eric A. Hall http://www.ehsco.com/ Internet Core Protocols http://www.oreilly.com/catalog/coreprot/