Here is more evidence of how the emergence of a private market for IPv4 addresses is creating concern at ARIN and driving policy change. Note that in my interview with private address broker Addrex, published here a week ago, its President Charles Lee noted that large ISPs in the Asia Pacific region were showing strong buyer interest in legacy address blocks currently sitting idle in North America. This poses a problem for the current RIR system. The RIRs are organized around exclusive territorial regions and their policies basically prohibit inter-regional sales of address blocks. A private broker dealing in legacy address space, however, is not subject to those constraints. Once again, an emergent market subtly disrupts the establish institutional regime.
ARIN is, evidently, scrambling to catch up. A new proposal was submitted to ARIN's policy development process just yesterday. Entitled “ARIN-prop-156 Update 8.3 to allow inter-RIR transfers” it would allow inter-regional market transfers.