These entries are queried from radb.net using whois, you can try my project getting these.
:AS18777 route: 74.200.136.0/24 origin: AS18777 descr: Texas State University - O'Henry Hall AS18777 mnt-by: MAINT-AS16905 changed: david.nichols [at] tx-learn.net 20201109 #22:08:51Z source: RADB last-modified: 2023-11-13T16:02:42Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 74.200.138.0/24 origin: AS18777 descr: Texas State University AS18777 mnt-by: MAINT-AS16905 changed: david.nichols [at] tx-learn.net 20201109 #22:10:00Z source: RADB last-modified: 2023-11-13T16:02:42Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 134.114.0.0/16 origin: AS18777 descr: Texas State University - San Marcos mnt-by: MAINT-AS16905 changed: david.nichols [at] tx-learn.net 20201021 #16:04:25Z source: RADB last-modified: 2023-11-13T16:02:40Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 147.26.0.0/16 descr: Texas State University San Marcos origin: AS18777 notify: radb [at] ots.utsystem.edu mnt-by: MAINT-AS6922 changed: radb [at] ots.utsystem.edu 20070504 #13:49:03(UTC) source: RADB last-modified: 2023-11-13T15:39:41Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 147.26.208.0/23 origin: AS18777 descr: Texas State University - San Marcos mnt-by: MAINT-AS16905 changed: david.nichols [at] tx-learn.net 20201021 #16:00:47Z source: RADB last-modified: 2023-11-13T16:02:40Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 147.26.212.0/24 origin: AS18777 descr: Texas State University - San Marcos mnt-by: MAINT-AS16905 changed: david.nichols [at] tx-learn.net 20201021 #18:01:45Z source: RADB last-modified: 2023-11-13T16:02:40Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 147.26.220.0/22 origin: AS18777 descr: Texas State University - San Marcos mnt-by: MAINT-AS16905 changed: david.nichols [at] tx-learn.net 20201026 #18:49:47Z source: RADB last-modified: 2023-11-13T16:02:40Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 147.26.224.0/24 origin: AS18777 descr: Texas State University mnt-by: MAINT-AS16905 changed: david.nichols [at] tx-learn.net 20201021 #15:40:19Z source: RADB last-modified: 2023-11-13T16:02:40Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 192.92.115.0/24 descr: Sam Houston State University via Texas State University AS18777 origin: AS18777 mnt-by: MAINT-AS16905 changed: byron.hicks [at] tx-learn.net 20180405 #18:19:11Z source: RADB last-modified: 2023-11-13T15:53:23Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 199.83.218.0/24 descr: Lamar State University - Port Arthur via Texas State University AS18777 origin: AS18777 mnt-by: MAINT-AS16905 changed: byron.hicks [at] tx-learn.net 20180405 #18:21:13Z source: RADB last-modified: 2023-11-13T15:53:23Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source