Surging requests for IPv4 addresses are drying up the available store, raising the specter of an IPv4 black market. At the current rate, the IANA pool may well be exhausted by the end of this year. The transition from IPv4 to IPv6 has been long anticipated, but many organizations are ill-prepared for the fallout of IPv4 exhaustion. New services are increasingly becoming available only on IPv6, as tech vendors and service providers increasingly find IPv4 too expensive to support.”]
Source: https://www.csoonline.com/article/2125136/beware-the-black-market-rising-for-ip-addresses.html