These entries are queried from radb.net using whois, you can try my project getting these.
:AS13429 route: 128.23.0.0/16 origin: AS13429 descr: Medical University of South Carolina admin-c: MUSC-1 tech-c: MUSC-1 mnt-by: MAINT-AS2722 changed: bkmille [at] clemson.edu 20200601 #06:01:45Z source: RADB last-modified: 2023-11-13T16:00:42Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 128.23.0.0/17 origin: AS13429 descr: Medical Univerity of South Carolina admin-c: MUSC-1 tech-c: MUSC-1 mnt-by: MAINT-AS2722 changed: bkmille [at] clemson.edu 20210309 #20:51:30Z source: RADB last-modified: 2023-11-13T16:05:09Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 128.23.128.0/17 origin: AS13429 descr: Medical University of South Carolina admin-c: MUSC-1 tech-c: MUSC-1 remarks: Medical University of South Carolina mnt-by: MAINT-AS2722 changed: bkmille [at] clemson.edu 20200601 #04:35:44Z source: RADB last-modified: 2023-11-13T16:00:42Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 128.23.200.0/24 origin: AS13429 descr: Medical University of South Carolina admin-c: MUSC-1 tech-c: MUSC-1 mnt-by: MAINT-AS2722 changed: bkmille [at] clemson.edu 20210617 #18:22:32Z source: RADB last-modified: 2023-11-13T16:05:50Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 128.23.205.0/24 origin: AS13429 descr: Medical University of South Carolina admin-c: MUSC-1 tech-c: MUSC-1 mnt-by: MAINT-AS2722 changed: bkmille [at] clemson.edu 20211129 #14:01:34Z source: RADB last-modified: 2023-11-13T16:08:56Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2620:48::/48 descr: MUSC origin: AS13429 mnt-by: MAINT-AS2637 changed: scott.friedrich [at] oit.gatech.edu 20180118 #17:36:06Z source: RADB last-modified: 2023-11-13T15:53:03Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source