1991-05-22T00:00:00-04:00https://rdap.arin.net/registry/ip/224.0.0.0[https://whois.arin.net/rest/net/NET-224-0-0-0-1]239.255.255.255NET-224-0-0-0-1MCAST-NET4239.255.255.255IANA Special UseIU224.0.0.0falsehttps://whois.arin.net/rest/org/IANAAddresses starting with a number between 224 and 239 are used for IP multicast. IP multicast is a technology for efficiently sending the same content to multiple destinations. It is commonly used for distributing financial information and video streams, among other things.
A full list of IPv4 multicast assignments can be found at:
http://www.iana.org/assignments/multicast-addresses
A document describing the policies for assigning multicast addresses can be found at:
http://datatracker.ietf.org/doc/rfc5771224.0.0.02013-08-30T14:26:14-04:004