These entries are queried from radb.net using whois, you can try my project getting these.
:AS57994 route: 80.251.16.0/24 descr: auto-generated route object for 80.251.16.0/24 origin: AS57994 mnt-by: MAINT-AS57994 changed: chris [at] netearth.net 20120622 #16:19:41Z source: RADB last-modified: 2023-11-13T15:43:21Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 80.251.17.0/24 descr: auto-generated route object for 80.251.17.0/24 origin: AS57994 mnt-by: MAINT-AS57994 changed: chris [at] netearth.net 20120622 #16:19:41Z source: RADB last-modified: 2023-11-13T15:43:21Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 80.251.18.0/24 descr: auto-generated route object for 80.251.18.0/24 origin: AS57994 mnt-by: MAINT-AS57994 changed: chris [at] netearth.net 20120622 #16:19:41Z source: RADB last-modified: 2023-11-13T15:43:21Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 80.251.19.0/24 descr: LON01 origin: AS57994 mnt-by: MAINT-AS57994 changed: jcdmacleod [at] me.com 20140317 #13:10:30Z source: RADB last-modified: 2023-11-13T15:46:17Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 80.251.20.0/24 descr: LON01 origin: AS57994 mnt-by: MAINT-AS57994 changed: jcdmacleod [at] me.com 20140317 #13:16:36Z source: RADB last-modified: 2023-11-13T15:46:17Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 80.251.21.0/24 descr: LON01 origin: AS57994 mnt-by: MAINT-AS57994 changed: jcdmacleod [at] me.com 20140317 #13:19:27Z source: RADB last-modified: 2023-11-13T15:46:17Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 80.251.22.0/24 descr: LON01 origin: AS57994 mnt-by: MAINT-AS57994 changed: jcdmacleod [at] me.com 20140317 #13:20:07Z source: RADB last-modified: 2023-11-13T15:46:17Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 80.251.23.0/24 descr: LON01 origin: AS57994 mnt-by: MAINT-AS57994 changed: jcdmacleod [at] me.com 20140317 #13:20:42Z source: RADB last-modified: 2023-11-13T15:46:17Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 80.251.24.0/24 descr: LON01 origin: AS57994 mnt-by: MAINT-AS57994 changed: jcdmacleod [at] me.com 20140317 #13:21:24Z source: RADB last-modified: 2023-11-13T15:46:17Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 80.251.25.0/24 descr: LON01 origin: AS57994 mnt-by: MAINT-AS57994 changed: jcdmacleod [at] me.com 20140317 #13:22:13Z source: RADB last-modified: 2023-11-13T15:46:17Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 80.251.26.0/24 descr: LON01 origin: AS57994 mnt-by: MAINT-AS57994 changed: jcdmacleod [at] me.com 20140317 #13:23:12Z source: RADB last-modified: 2023-11-13T15:46:17Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 80.251.27.0/24 descr: IDCNET-UK origin: AS57994 mnt-by: MAINT-AS57994 changed: chris [at] netearth.net 20130224 #11:49:57Z source: RADB last-modified: 2023-11-13T15:45:07Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 80.251.28.0/24 descr: auto-generated route object for 80.251.28.0/24 origin: AS57994 mnt-by: MAINT-AS57994 changed: chris [at] netearth.net 20120622 #16:19:41Z source: RADB last-modified: 2023-11-13T15:43:21Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 80.251.29.0/24 descr: LON01 origin: AS57994 mnt-by: MAINT-AS57994 changed: jcdmacleod [at] me.com 20140317 #13:24:21Z source: RADB last-modified: 2023-11-13T15:46:17Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 80.251.30.0/24 descr: LON01 origin: AS57994 mnt-by: MAINT-AS57994 changed: jcdmacleod [at] me.com 20140317 #13:25:01Z source: RADB last-modified: 2023-11-13T15:46:17Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 80.251.31.0/24 descr: LON01 origin: AS57994 mnt-by: MAINT-AS57994 changed: jcdmacleod [at] me.com 20140317 #13:25:36Z source: RADB last-modified: 2023-11-13T15:46:17Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source