These entries are queried from radb.net using whois, you can try my project getting these.
:AS53893 route: 8.30.88.0/22 descr: Earthwave Services, LLC descr: 1718 M St NW #145 descr: Washington, DC 20036 descr: US origin: AS53893 mnt-by: MNT-ESL-68 changed: mike [at] earthwaveservices.net 20110728 source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 104.219.48.0/22 origin: AS53893 mnt-by: MNT-ESL-68 descr: Earthwave Services, LLC Northern Virginia - Equinix tech-c: DYEMI-ARIN admin-c: DYEMI-ARIN source: ARIN created: 2020-06-14T16:34:05Z last-modified: 2020-06-14T16:34:05Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2001:1900:2222::/48 descr: Earthwave Services LLC origin: AS53893 mnt-by: EARTHWAVESERVCS-MNT changed: Razvan.sirghie [at] level3.com 20110729 source: LEVEL3 rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source