Multicast addresses in the range of 224.0.0.0 through 224.0.0.244 are reserved for:

A.
Administratively Scoped multicast traffic that is intended to reamin inside of a private network and is never intended to be transmitted into the Internet.

B.
Global Internet multicast traffic intended to travel throughout the Internet.

C.
Link-local multicast traffic consiting of network control messages that never leave the local subnet.