These entries are queried from radb.net using whois, you can try my project getting these.
:AS327708 route: 197.157.212.0/22 descr: Airtel-RW-197.157.212.0/22 origin: AS327708 mnt-by: AIRTELRW-MNT changed: *** [at] rw.airtel.com 20190618 source: AFRINIC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 197.157.212.0/24 descr: Airtel-RW-197.157.212.0/24 origin: AS327708 mnt-by: AIRTELRW-MNT changed: *** [at] rw.airtel.com 20190614 source: AFRINIC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 197.157.213.0/24 descr: Airtel-RW-197.157.213.0/24 origin: AS327708 mnt-by: AIRTELRW-MNT changed: *** [at] rw.airtel.com 20190614 source: AFRINIC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 197.157.214.0/24 descr: Airtel-RW-197.157.214.0/24 origin: AS327708 mnt-by: AIRTELRW-MNT changed: *** [at] rw.airtel.com 20190614 source: AFRINIC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 197.157.215.0/24 descr: Airtel-RW-197.157.215.0/24 origin: AS327708 mnt-by: AIRTELRW-MNT changed: *** [at] rw.airtel.com 20190614 source: AFRINIC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source