These entries are queried from radb.net using whois, you can try my project getting these.
:AS16568 route: 208.86.232.0/24 descr: Promega Corporation descr: 2800 WOODS HOLLOW RD descr: FITCHBURG, WI 53711 descr: US origin: AS16568 mnt-by: MNT-PROMEG changed: paul.svendsen [at] promega.com 20170123 source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 208.86.233.0/24 descr: Promega Corporation descr: 2 BENHAM ROASD descr: SOUTHAMPTON SCIENCE PARK descr: CHILWORTH SO16 7QJ descr: UK origin: AS16568 mnt-by: MNT-PROMEG changed: paul.svendsen [at] promega.com 20190730 source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 208.86.234.0/24 descr: Promega Corporation descr: 7901 WEST CLINTON AVE descr: MILWAUKEE, WI 53223 descr: US origin: AS16568 mnt-by: MNT-PROMEG changed: paul.svendsen [at] promega.com 20190730 source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 208.86.235.0/24 descr: Promega Corporation descr: GUTENBERGRING 1 descr: 69190 WALLDORF descr: DE origin: AS16568 mnt-by: MNT-PROMEG changed: paul.svendsen [at] promega.com 20190730 source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source