These entries are queried from radb.net using whois, you can try my project getting these.
:AS139844 route: 103.146.44.0/24 origin: AS139844 descr: Registration for AS139844 mnt-by: MAINT-AS132280 changed: nuchit.p [at] symphony.net.th 20231201 # 1007Z source: RADB last-modified: 2023-12-01T10:07:32Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 103.146.44.0/24 descr: Proxy-registered route object origin: AS139844 remarks: This is a HGC customer route-object remarks: which is being exported under this origin AS. remarks: remarks: This route object was created because no existing remarks: route object with the same origin was found. remarks: remarks: Please contact radb [at] hutchcity.com if you have any remarks: questions regarding this object. notify: radb [at] hutchcity.com mnt-by: MAINT-AS9304 changed: radb [at] hutchcity.com 20221214 source: NTTCOM last-modified: 2022-12-14T22:55:24Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 103.146.45.0/24 origin: AS139844 descr: Registration for AS139844 mnt-by: MAINT-AS132280 changed: nuchit.p [at] symphony.net.th 20231201 # 1008Z source: RADB last-modified: 2023-12-01T10:08:41Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 103.146.45.0/24 descr: Proxy-registered route object origin: AS139844 remarks: This is a HGC customer route-object remarks: which is being exported under this origin AS. remarks: remarks: This route object was created because no existing remarks: route object with the same origin was found. remarks: remarks: Please contact radb [at] hutchcity.com if you have any remarks: questions regarding this object. notify: radb [at] hutchcity.com mnt-by: MAINT-AS9304 changed: radb [at] hutchcity.com 20221214 source: NTTCOM last-modified: 2022-12-14T22:55:24Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source