RIPE NCC published a policy yesterday (April 9th) that will link the ARIN, RIPE and APNIC IPv4 markets. Ripe-644 allows inter-RIR transfers between the RIPE service region and other RIR regions, which will facilitate IPv4 sales between companies across regions.
The ARIN IPv4 free pool continues to decline while the transfer market is heating up and IPv6 penetration continues at a glacial pace. In the meantime RIPE’s draft policy that would open up the ARIN market to interRIR transfers with Europe is in its final phase.