These entries are queried from radb.net using whois, you can try my project getting these.
:AS18656 route: 104.193.12.0/22 descr: TeleSign Amsterdam descr: Equinix descr: Science Park 610, 1098 XH descr: Amsterdam, The Netherlands origin: AS18656 mnt-by: MNT-TELES-25 changed: yahn [at] telesign.com 20141222 source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 104.193.12.0/24 descr: TeleSign Amsterdam descr: Equinix descr: Science Park 610, 1098 XH descr: Amsterdam, The Netherlands origin: AS18656 mnt-by: MNT-TELES-25 changed: yahn [at] telesign.com 20141223 source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 104.193.13.0/24 descr: TeleSign Amsterdam descr: Equinix descr: Science Park 610, 1098 XH descr: Amsterdam, The Netherlands origin: AS18656 mnt-by: MNT-TELES-25 changed: yahn [at] telesign.com 20141223 source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 104.193.14.0/24 descr: RR-RC-Telesign Corporation-Pacwest origin: AS18656 notify: publicipaddressing [at] charter.com mnt-by: MAINT-RR changed: publicipaddressing [at] charter.com 20190320 #22:59:36Z source: RADB last-modified: 2023-11-13T16:15:18Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 149.2.28.0/24 descr: First Franklin Financial Corporation origin: AS18656 notify: hostinfo [at] psi.com mnt-by: MAINT-AS174 changed: hostinfo [at] psi.com 20001025 source: RADB last-modified: 2023-11-13T15:39:32Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 199.27.228.0/24 descr: PNAP-LAX origin: AS18656 mnt-by: MAINT-AS1828 changed: asanders [at] internap.com 20120813 source: RADB last-modified: 2023-11-13T16:14:19Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 199.27.229.0/24 descr: PNAP-LAX origin: AS18656 mnt-by: MAINT-AS1828 changed: asanders [at] internap.com 20120813 source: RADB last-modified: 2023-11-13T16:14:19Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 199.27.230.0/24 descr: PNAP-LAX origin: AS18656 mnt-by: MAINT-AS1828 changed: asanders [at] internap.com 20120813 source: RADB last-modified: 2023-11-13T16:14:19Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 199.27.231.0/24 descr: PNAP-LAX origin: AS18656 mnt-by: MAINT-AS1828 changed: asanders [at] internap.com 20120813 source: RADB last-modified: 2023-11-13T16:14:19Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source