These entries are queried from radb.net using whois, you can try my project getting these.
:AS61257 route: 23.141.248.0/24 origin: AS61257 descr: 679 W 27TH AVE VANCOUVER BC V5Z 4H7 Canada admin-c: NOC33518-ARIN tech-c: NOC33518-ARIN mnt-by: MNT-TNL-164 created: 2022-10-15T00:03:38Z last-modified: 2022-10-15T00:03:38Z source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2602:fb01::/40 origin: AS61257 descr: 679 W 27TH AVE VANCOUVER BC V5Z 4H7 Canada admin-c: NOC33518-ARIN tech-c: NOC33518-ARIN mnt-by: MNT-TNL-164 created: 2022-10-15T00:04:38Z last-modified: 2022-10-15T00:04:38Z source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source