These entries are queried from radb.net using whois, you can try my project getting these.
:AS17153 route: 129.138.0.0/16 descr: New Mexico Institute of Mining and Technology origin: AS17153 admin-c: Dan Lunceford tech-c: Dan Lunceford mnt-by: MAINT-AS3912 changed: piyasat [at] nmsu.edu 20100920 #21:45:01Z source: RADB last-modified: 2023-11-13T15:41:00Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 146.88.0.0/20 descr: NRAO via NMT (AS 17153) origin: AS17153 mnt-by: MAINT-AS40498 changed: emay [at] unm.edu 20161031 #17:28:03Z source: RADB last-modified: 2023-11-13T15:49:55Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 146.88.0.0/24 descr: NMT More Specific Advertisement origin: AS17153 mnt-by: MAINT-AS40498 changed: emay [at] unm.edu 20161031 #17:20:50Z source: RADB last-modified: 2023-11-13T15:49:55Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 192.92.118.0/23 descr: NRAO Class C. origin: AS17153 mnt-by: MAINT-AS40498 changed: pchang [at] unm.edu 20130423 #16:03:51Z source: RADB last-modified: 2023-11-13T15:45:23Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 204.134.54.0/24 origin: AS17153 descr: NMT /24 from larger NMSU assigned block mnt-by: MAINT-AS40498 changed: emay [at] unm.edu 20200415 #14:25:29Z source: RADB last-modified: 2023-11-13T16:00:23Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source