Type,Name,Reference
0,Pad1,[RFC8966]
1,PadN,[RFC8966]
2,Diversity,[draft-chroboczek-babel-diversity-routing-00]
3,Timestamp,[RFC9616]
4-111,Unassigned,
112-126,Reserved for Experimental Use,[RFC8966]
127,Reserved for expansion of the type space,[RFC8966]
128,Source Prefix,[RFC9079]
129-239,Unassigned,
240-254,Reserved for Experimental Use,[RFC8966]
255,Reserved for expansion of the type space,[RFC8966]