Sub-Type Value,Name,Reference,Date
0x00,BGP Origin Validation State Extended Community,[RFC8097],
0x01,Cost Community,[draft-ietf-idr-custom-decision-04],2014-07-15
0x02,Route Target,[Nischal_Sheth],2019-05-17
0x03-0x14,Unassigned,,
0x15,RT-derived-EC,[draft-zzhang-idr-rt-derived-community-00],2021-03-09
0x16-0xff,Unassigned,,