These entries are queried from radb.net using whois, you can try my project getting these.
:AS7257 route: 66.55.43.0/24 descr: Premiere Conferencing origin: AS7257 remarks: contact peering [at] icgcomm.com mnt-by: MAINT-AS2551 changed: ingrid_erkman [at] icgcomm.com 20050224 #15:48:55(UTC) source: LEVEL3 rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 69.12.102.0/23 descr: PGI-2824-3 origin: AS7257 mnt-by: D102-MNT changed: ipadmin [at] data102.com 20180523 source: LEVEL3 rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 75.98.207.0/24 descr: NET-75-98-207-0-1 origin: AS7257 remarks: Proxy route on behalf of Amanah mnt-by: MAINT-AS852 notify: backbone [at] telus.com changed: abuse [at] telus.com 20160629 source: RADB last-modified: 2023-11-13T15:49:34Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 206.216.32.0/24 descr: PremiereGlobal origin: AS7257 remarks: contact peering [at] icgcomm.com mnt-by: MAINT-AS2551 changed: ingrid_erkman [at] icgcomm.com 20050218 #19:25:31(UTC) source: LEVEL3 rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source