These entries are queried from radb.net using whois, you can try my project getting these.
:AS38599 route: 58.97.39.0/24 descr: True Multimedia origin: AS38599 mnt-by: MAINT-AS7470 changed: register [at] asianet.co.th 20070717 #08:51:53(UTC) source: RADB last-modified: 2023-11-13T15:39:53Z rpki-ov-state: valid route: 58.97.39.0/24 descr: CMI IP Transit origin: AS38599 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 route: 58.181.209.0/24 descr: KSC Commercial Internet, Bangkok, Thailand. origin: AS38599 notify: network [at] ksc.net notify: corenetwork [at] ksc.net mnt-by: MAINT-AS7693 changed: netadmin [at] ksc.net 20080307 #09:49:03(UTC) source: RADB last-modified: 2023-11-13T15:47:25Z rpki-ov-state: valid route: 58.181.209.0/24 origin: AS38599 descr: KSC Commercial Internet Co.Ltd. 2/4 Chubb Tower, 10th Floor Vibhavadee-Rangist Road Thungsonghong mnt-by: KSC-ADMIN last-modified: 2019-06-13T08:43:18Z source: APNIC rpki-ov-state: valid route: 58.181.209.0/24 descr: CMI IP Transit origin: AS38599 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 route: 58.181.225.0/24 origin: AS38599 descr: KSC Commercial Internet Co.Ltd. 2/4 Chubb Tower, 10th Floor Vibhavadee-Rangist Road Thungsonghong mnt-by: KSC-ADMIN last-modified: 2019-06-13T08:43:20Z source: APNIC rpki-ov-state: valid route: 58.181.225.0/24 descr: KSC Commercial Internet, Bangkok, Thailand. origin: AS38599 notify: network [at] ksc.net notify: corenetwork [at] ksc.net mnt-by: MAINT-AS7693 changed: netadmin [at] ksc.net 20070717 #09:58:46(UTC) source: RADB last-modified: 2023-11-13T15:47:25Z rpki-ov-state: valid route: 58.181.225.0/24 descr: CMI IP Transit origin: AS38599 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 route: 61.91.104.0/24 descr: TI multi Home origin: AS38599 mnt-by: MAINT-AS7470 changed: register [at] asianet.co.th 20080318 #03:14:08(UTC) source: RADB last-modified: 2023-11-13T15:39:55Z rpki-ov-state: valid