These entries are queried from radb.net using whois, you can try my project getting these.
:AS133113 route: 203.151.211.0/24 origin: AS133113 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: 2020-11-19T08:18:42Z source: APNIC rpki-ov-state: valid route: 203.151.211.0/24 descr: INET-TH origin: AS133113 mnt-by: MAINT-AS4618 changed: nidchan [at] inet.co.th 20131010 #10:50:14Z source: RADB last-modified: 2023-11-13T15:49:06Z rpki-ov-state: valid route: 203.151.211.0/24 descr: CMI IP Transit origin: AS133113 admin-c: MAINT-CMI-INT-HK tech-c: MAINT-CMI-INT-HK mnt-by: MAINT-CMI-INT-HK changed: qas_support [at] cmi.chinamobile.com 20160815 source: NTTCOM rpki-ov-state: valid