These entries are queried from radb.net using whois, you can try my project getting these.
:AS40089 route: 52.129.16.0/22 descr: ADDED FOR - AS40089 origin: AS40089 notify: noc [at] 123.net mnt-by: I123-MNT changed: rpd [at] 123.net source: LEVEL3 last-modified: 2023-11-15T19:19:26Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 52.129.16.0/24 descr: Switch Communications Customer Route origin: AS40089 member-of: RS-AS23005,RS-AS22911 remarks: Route for Bullhorn, Inc. mnt-by: MAINT-SWITCH changed: netops [at] switch.com 20180523 #23:21:15Z source: RADB last-modified: 2023-11-13T15:53:43Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 52.129.17.0/24 descr: Switch Communications Customer Route origin: AS40089 member-of: RS-AS23005,RS-AS22911 remarks: Route for Bullhorn, Inc. mnt-by: MAINT-SWITCH changed: netops [at] switch.com 20180523 #23:23:27Z source: RADB last-modified: 2023-11-13T15:53:43Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 52.129.18.0/24 descr: Switch Communications Customer Route origin: AS40089 member-of: RS-AS23005 member-of: RS-AS22911 remarks: Route for Bullhorn Inc. mnt-by: MAINT-SWITCH changed: netops [at] switch.com 20191202 #22:43:39Z source: RADB last-modified: 2023-11-13T15:59:14Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 52.129.19.0/24 descr: Switch Communications Customer Route origin: AS40089 member-of: RS-AS23005 remarks: Route for Bullhorn mnt-by: MAINT-SWITCH changed: netops [at] switch.com 20200201 #22:05:10Z source: RADB last-modified: 2023-11-13T15:59:42Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 204.15.170.0/23 descr: Switch Communications Customer Route origin: AS40089 member-of: RS-AS23005,RS-AS22911 mnt-by: MAINT-SWITCH changed: netops [at] switch.com 20180102 source: RADB last-modified: 2023-11-13T15:52:44Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 204.15.170.0/23 descr: Switch Communications Customer Route origin: AS40089 remarks: Route for Bullhorn, Inc. remarks: 204.15.170.0/23-24 notify: netops-eng [at] supernap.com mnt-by: SWITCHCOM-MNT changed: netops-eng [at] supernap.com 20150421 source: LEVEL3 rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 204.15.170.0/24 descr: ADDED FOR - AS40089 origin: AS40089 notify: noc [at] 123.net mnt-by: I123-MNT changed: rpd [at] 123.net source: LEVEL3 last-modified: 2023-11-15T19:19:53Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 204.62.52.0/22 descr: Switch Communications Customer Route origin: AS40089 member-of: RS-AS23005,RS-AS22911 mnt-by: MAINT-SWITCH changed: netops [at] switch.com 20180102 source: RADB last-modified: 2023-11-13T15:52:44Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 204.62.52.0/22 descr: Switch Communications Customer Route origin: AS40089 remarks: Route for Bullhorn, Inc. remarks: 204.62.52.0/22-24 notify: netops-eng [at] supernap.com mnt-by: SWITCHCOM-MNT changed: netops-eng [at] supernap.com 20150421 source: LEVEL3 rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source