These entries are queried from radb.net using whois, you can try my project getting these.
:AS30321 route: 162.212.144.0/21 descr: Burning Man origin: AS30321 mnt-by: MAINT-AS6140 changed: matt [at] peterson.org 20150714 source: ALTDB rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 162.212.144.0/22 descr: Burning Man - Nevada Event Network origin: AS30321 mnt-by: MAINT-AS6140 changed: matt [at] peterson.org 20150312 source: ALTDB rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2620:116:7000::/48 descr: Burning Man - Nevada Event Network origin: AS30321 mnt-by: MAINT-AS6140 changed: matt [at] peterson.org 20150312 source: ALTDB rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source