These entries are queried from radb.net using whois, you can try my project getting these.
:AS7057 route: 98.143.64.0/20 descr: MNSI-BLK-2 origin: AS7057 mnt-by: MAINT-AS7057 changed: clayton [at] mnsi.net 20130506 #13:59:44Z source: RADB last-modified: 2023-11-13T15:45:25Z rpki-ov-state: valid route: 104.254.8.0/22 descr: MNSI-BLK-3 origin: AS7057 mnt-by: MAINT-AS7057 changed: clayton [at] mnsi.net 20141223 #14:23:10Z source: RADB last-modified: 2023-11-13T15:47:01Z rpki-ov-state: valid route: 204.187.59.0/24 descr: Spectranet.CA origin: AS7057 mnt-by: MAINT-AS7057 changed: claton [at] mnsi.net 20060216 #08:51:20(UTC) changed: clayton [at] mnsi.net 20060216 #01:38:32(UTC) source: RADB last-modified: 2023-11-13T15:39:37Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 216.8.128.0/18 descr: MNSI-BLK-1 origin: AS7057 mnt-by: MAINT-AS7057 changed: clayton [at] mnsi.net 20060215 #21:01:44(UTC) source: RADB last-modified: 2023-11-13T15:39:37Z rpki-ov-state: valid route: 216.8.128.0/19 descr: Sub-Block-A origin: AS7057 mnt-by: MAINT-AS7057 changed: clayton [at] mnsi.net 20060216 #08:47:01(UTC) source: RADB last-modified: 2023-11-13T15:39:37Z rpki-ov-state: valid route: 216.8.160.0/19 descr: Sub-Block-B origin: AS7057 mnt-by: MAINT-AS7057 changed: clayton [at] mnsi.net 20050713 #20:17:34(UTC) source: RADB last-modified: 2023-11-13T15:39:36Z rpki-ov-state: valid route: 216.174.64.0/18 origin: AS7057 descr: MNSI-BLK-5 mnt-by: MAINT-AS7057 changed: clayton [at] mnsi.net 20190821 #21:05:33Z source: RADB last-modified: 2023-11-13T15:57:06Z rpki-ov-state: valid route: 216.252.208.0/22 descr: MNSI-BLK-4 origin: AS7057 mnt-by: MAINT-AS7057 changed: clayton [at] mnsi.net 20150501 #17:49:45Z source: RADB last-modified: 2023-11-13T15:47:25Z rpki-ov-state: valid route6: 2600:dc00::/28 origin: AS7057 descr: MNSI-V6-BLK-1 mnt-by: MAINT-AS7057 changed: clayton [at] mnsi.net 20230106 #17:38:25Z source: RADB last-modified: 2023-11-13T16:13:29Z rpki-ov-state: valid