These entries are queried from radb.net using whois, you can try my project getting these.
:AS396956 route: 66.220.160.0/21 origin: AS396956 descr: MLEC mnt-by: MAINT-AS40749 changed: ricky.sharp [at] cdelightband.com 20200716 #13:18:06Z source: RADB last-modified: 2023-11-13T16:01:13Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 66.220.168.0/22 origin: AS396956 descr: MLEC mnt-by: MAINT-AS40749 changed: ricky.sharp [at] cdelightband.com 20200716 #13:19:02Z source: RADB last-modified: 2023-11-13T16:01:13Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 152.42.0.0/18 origin: AS396956 descr: MLEC mnt-by: MAINT-AS40749 changed: ricky.sharp [at] cdelightband.com 20230124 #19:49:30Z source: RADB last-modified: 2023-11-13T16:13:36Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 152.86.48.0/20 origin: AS396956 descr: MLEC mnt-by: MAINT-AS40749 changed: ricky.sharp [at] cdelightband.com 20200716 #13:19:42Z source: RADB last-modified: 2023-11-13T16:01:13Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source