The owner of an unused IP address and an IPv4 broker are your best bets if you're trying to find out who is selling IP addresses. Find out more below:

Owner of an unused IP address

The unused IP address is using the IPv4 depletion as a chance to make money. In 2022, an IP address for IPv4 will cost about $50; some owners will be selling their addresses online; you can get in touch with them.
2. IPv4 Broker
The owner of an IPv4 address can sell their address with the aid of IPv4 brokers. The selling procedure will be quicker and more secure because they are experts in managing IPv4