These entries are queried from radb.net using whois, you can try my project getting these.
:AS22645 route: 50.21.240.0/20 descr: Blinn College origin: AS22645 mnt-by: MAINT-AS16905 changed: byron.hicks [at] tx-learn.net 20170804 #13:47:42Z source: RADB last-modified: 2023-11-13T15:51:18Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 50.21.240.0/23 origin: AS22645 descr: Blinn College mnt-by: MAINT-AS16905 changed: david.nichols [at] tx-learn.net 20201021 #15:00:51Z 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: 50.21.242.0/23 origin: AS22645 descr: Blinn College mnt-by: MAINT-AS16905 changed: david.nichols [at] tx-learn.net 20201021 #15:01:54Z 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: 50.21.244.0/23 origin: AS22645 descr: Blinn College mnt-by: MAINT-AS16905 changed: david.nichols [at] tx-learn.net 20201021 #15:02:27Z 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: 50.21.246.0/23 origin: AS22645 descr: Blinn College mnt-by: MAINT-AS16905 changed: david.nichols [at] tx-learn.net 20201021 #15:02:55Z 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: 50.21.248.0/23 origin: AS22645 descr: Blinn College mnt-by: MAINT-AS16905 changed: david.nichols [at] tx-learn.net 20201021 #15:03:27Z 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: 50.21.250.0/23 origin: AS22645 descr: Blinn College mnt-by: MAINT-AS16905 changed: david.nichols [at] tx-learn.net 20201021 #15:04:00Z 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: 50.21.252.0/23 origin: AS22645 descr: Blinn College mnt-by: MAINT-AS16905 changed: david.nichols [at] tx-learn.net 20201109 #22:01:11Z 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: 50.21.254.0/23 origin: AS22645 descr: Blinn College mnt-by: MAINT-AS16905 changed: david.nichols [at] tx-learn.net 20201026 #19:09:43Z 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: 64.92.176.0/20 descr: Blinn College origin: AS22645 mnt-by: MAINT-AS16905 changed: byron.hicks [at] tx-learn.net 20170804 #13:46:52Z source: RADB last-modified: 2023-11-13T15:51:18Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 64.92.176.0/21 origin: AS22645 descr: Blinn College mnt-by: MAINT-AS16905 changed: david.nichols [at] tx-learn.net 20201021 #15:30:48Z 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: 64.92.184.0/21 origin: AS22645 descr: Blinn College mnt-by: MAINT-AS16905 changed: david.nichols [at] tx-learn.net 20201021 #15:31:57Z 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: 68.69.52.0/24 origin: AS22645 descr: Paris Jr. College via LEARN mnt-by: MAINT-AS16905 changed: david.nichols [at] tx-learn.net 20220624 #18:03:33Z source: RADB last-modified: 2023-11-13T16:11:41Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 74.200.128.0/18 descr: LEARN via NTG origin: AS22645 mnt-by: MAINT-AS16905 changed: kevin2 [at] utdallas.edu 20091019 #17:28:24Z source: RADB last-modified: 2023-11-13T15:40:20Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 74.200.150.0/23 origin: AS22645 descr: FWAS NAT pool mnt-by: MAINT-AS16905 changed: david.nichols [at] tx-learn.net 20210311 #23:01:42Z 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: 74.200.176.0/24 origin: AS22645 descr: LEARN AS22645 mnt-by: MAINT-AS16905 changed: david.nichols [at] tx-learn.net 20201109 #22:15:25Z 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: 74.200.179.0/24 origin: AS22645 descr: LEARN DTN / SDMZ subnet for NSF CC* and LEAPS grants mnt-by: MAINT-AS16905 changed: david.nichols [at] tx-learn.net 20230106 #16:22:50Z source: RADB last-modified: 2023-11-13T16:13:29Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 74.200.188.0/24 origin: AS22645 descr: LEARN AS22645 mnt-by: MAINT-AS16905 changed: david.nichols [at] tx-learn.net 20201109 #22:23:42Z 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: 199.115.208.0/22 descr: Sul Ross State University origin: AS22645 mnt-by: MAINT-AS16905 changed: byron.hicks [at] tx-learn.net 20180405 #18:22:10Z 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: 199.115.208.0/23 origin: AS22645 descr: Sul Ross Alpine mnt-by: MAINT-AS16905 changed: byron.hicks [at] tx-learn.net 20190923 #22:08:44Z source: RADB last-modified: 2023-11-13T15:57:47Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 199.115.210.0/24 origin: AS22645 descr: Sul Ross Alpine mnt-by: MAINT-AS16905 changed: byron.hicks [at] tx-learn.net 20190923 #22:09:21Z source: RADB last-modified: 2023-11-13T15:57:47Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 199.115.211.0/24 origin: AS22645 descr: Sul Ross State University via Texas State University AS18777 mnt-by: MAINT-AS16905 changed: david.nichols [at] tx-learn.net 20201109 #21:50:24Z 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: 208.76.224.0/22 descr: LEARN DFW origin: AS22645 notify: noc [at] northtexasgigapop.org mnt-by: MAINT-AS16905 changed: kevin2 [at] utdallas.edu 20101004 #15:11:57Z source: RADB last-modified: 2023-11-13T15:41:01Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 208.76.225.0/24 origin: AS22645 descr: LEARN AS22645 mnt-by: MAINT-AS16905 changed: david.nichols [at] tx-learn.net 20201109 #21:57:16Z source: RADB last-modified: 2023-11-13T16:02:42Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2607:f928::/32 descr: Lonestar Education and Research Network (LEARN) origin: AS22645 mnt-by: MAINT-AS16905 changed: byron.hicks [at] tx-learn.net 20170929 #21:17:41Z source: RADB last-modified: 2023-11-13T15:51:35Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source