These entries are queried from radb.net using whois, you can try my project getting these.
:AS35988 route: 66.9.45.0/24 descr: UMASS origin: AS35988 mnt-by: MAINT-CHTR-WD changed: dan.powers [at] chartercom.com 20101208 #20:49:10Z source: RADB last-modified: 2023-11-13T16:11:26Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 160.79.128.0/20 descr: UMass Memorial Health Care, Inc. origin: AS35988 mnt-by: MAINT-AS27506 changed: dino.barrow [at] crowncastle.com 20230216 source: RADB last-modified: 2023-11-13T16:14:57Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 160.79.139.0/24 descr: CHTR-MA-Public origin: AS35988 mnt-by: CHARTER-MNT changed: ian.underwood [at] chartercom.com 20081020 source: LEVEL3 rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 160.79.139.0/24 descr: Umass Memorial health care origin: AS35988 mnt-by: MAINT-CHTR-WD changed: john.abeln [at] chartercom.com 20091028 source: RADB last-modified: 2023-11-13T16:11:25Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source