These entries are queried from radb.net using whois, you can try my project getting these.
:AS137392 route: 203.172.73.0/24 descr: Proxy-registered route object origin: AS137392 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 20200624 source: NTTCOM rpki-ov-state: valid route: 203.172.73.0/24 descr: KTB Securities Thailand origin: AS137392 mnt-by: MAINT-AS7470 changed: kanpisit_nin [at] trueinternet.co.th 20180108 #02:58:40Z source: RADB last-modified: 2023-11-13T15:52:44Z rpki-ov-state: valid route: 210.4.146.0/24 origin: AS137392 descr: Internet Thailand Company Ltd. 1768 IFCT Tower, 10th-12th FL IT Floor New Petchburi Road Khwaeng Bang Kapi Khet Huay Khwang mnt-by: MAINT-TH-INET last-modified: 2020-11-19T08:19:03Z source: APNIC rpki-ov-state: valid route: 210.4.146.0/24 origin: AS137392 descr: INET-TH-KTBST mnt-by: MAINT-AS4618 changed: samuttchais [at] inet.co.th 20190607 #08:58:32Z source: RADB last-modified: 2023-11-13T15:56:37Z rpki-ov-state: valid