These entries are queried from radb.net using whois, you can try my project getting these.
:AS150310 route: 103.250.220.0/23 descr: Proxy-registered route object origin: AS150310 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 20230316 source: NTTCOM last-modified: 2023-03-16T20:10:14Z rpki-ov-state: valid route: 103.250.220.0/23 descr: Nation Net origin: AS150310 mnt-by: MAINT-TMC-MM last-modified: 2023-02-09T04:57:54Z source: APNIC rpki-ov-state: valid route: 103.250.220.0/23 descr: CAT route object for International Gateway company limited origin: AS150310 mnt-by: MAINT-THIX-CAT-TH changed: catdb [at] cat.net.th 20230315 source: RADB last-modified: 2023-11-13T16:15:24Z rpki-ov-state: valid route: 103.250.220.0/24 descr: Proxy-registered route object origin: AS150310 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 20230316 source: NTTCOM last-modified: 2023-03-16T20:10:14Z rpki-ov-state: valid route: 103.250.220.0/24 origin: AS150310 descr: Customer route(Trustforce) mnt-by: MAINT-AS137557 changed: jittikorn [at] intergateway.co.th 20230315 #02:05:47Z source: RADB last-modified: 2023-11-13T16:15:24Z rpki-ov-state: valid route: 103.250.220.0/24 descr: NationNet origin: AS150310 mnt-by: MAINT-TMC-MM last-modified: 2023-02-20T09:28:55Z source: APNIC rpki-ov-state: valid route: 103.250.221.0/24 descr: NationNet origin: AS150310 mnt-by: MAINT-TMC-MM last-modified: 2023-02-20T09:28:55Z source: APNIC rpki-ov-state: valid route: 103.250.221.0/24 descr: Proxy-registered route object origin: AS150310 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 20230316 source: NTTCOM last-modified: 2023-03-16T20:10:14Z rpki-ov-state: valid route: 103.250.221.0/24 origin: AS150310 descr: Customer route(Trustforce) mnt-by: MAINT-AS137557 changed: jittikorn [at] intergateway.co.th 20230315 #02:06:31Z source: RADB last-modified: 2023-11-13T16:15:24Z rpki-ov-state: valid route6: 2001:df1:45c0::/48 descr: Nation Net origin: AS150310 mnt-by: MAINT-TMC-MM last-modified: 2023-02-09T04:56:55Z source: APNIC rpki-ov-state: valid route6: 2001:df1:45c0::/48 origin: AS150310 descr: AS150310 mnt-by: MAINT-AS132280 changed: sarawut.k [at] symphony.net.th 20230804 #11:15:46Z source: RADB last-modified: 2023-11-13T16:17:56Z rpki-ov-state: valid