Value,Meaning,Reference
0-255,Reserved. Must not be allocated. Usage mirrors the BGP FlowSpec registry [draft-ietf-idr-rfc5575bis-27] and [draft-ietf-idr-flow-spec-v6-19],[RFC9168]
256,Route Distinguisher,[RFC9168]
257,IPv4 Multicast,[RFC9168]
258,IPv6 Multicast,[RFC9168]
259-65531,Unassigned,
65532-65535,Experimental Use,[RFC9168]