These entries are queried from radb.net using whois, you can try my project getting these.
:AS53355 route: 12.229.144.0/24 descr: Concordia University Wisconsin origin: AS53355 mnt-by: MAINT-WISCNET changed: wopat [at] wiscnet.net 20170926 #19:08:47Z source: RADB last-modified: 2023-11-13T15:51:35Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 38.103.94.0/24 origin: AS53355 descr: Proxy object for Concordia University AS53355 mnt-by: MAINT-AS18683 changed: alomonaco [at] midwestfibernetworks.com 20230811 #22:35:41Z source: RADB last-modified: 2023-11-13T16:18:12Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 147.160.61.0/24 origin: AS53355 descr: Proxy object for Concordia University mnt-by: MAINT-AS18683 changed: alomonaco [at] midwestfibernetworks.com 20190709 #19:36:18Z source: RADB last-modified: 2023-11-13T15:56:44Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 192.149.245.0/24 descr: Concordia University Wisconsin origin: AS53355 mnt-by: MAINT-WISCNET changed: wopat [at] wiscnet.net 20170926 #19:11:13Z source: RADB last-modified: 2023-11-13T15:51:35Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 198.150.44.0/24 descr: Concordia University origin: AS53355 mnt-by: MAINT-WISCNET changed: wopat [at] wiscnet.net 20161003 #13:47:56Z source: RADB last-modified: 2023-11-13T15:49:53Z rpki-ov-state: valid route: 198.150.234.0/24 descr: Concordia University origin: AS53355 mnt-by: MAINT-WISCNET changed: wopat [at] wiscnet.net 20161003 #13:49:40Z source: RADB last-modified: 2023-11-13T15:49:53Z rpki-ov-state: valid route6: 2620:22::/48 descr: Concordia University Wisconsin origin: AS53355 mnt-by: MAINT-WISCNET changed: wopat [at] wiscnet.net 20170926 #19:12:10Z source: RADB last-modified: 2023-11-13T15:51:35Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source