These entries are queried from radb.net using whois, you can try my project getting these.
:AS38081 route: 122.144.29.0/24 descr: True International Gateway origin: AS38081 mnt-by: MAINT-AS38082 changed: netadmin [at] trueintergateway.com 20101019 #04:12:45Z source: RADB last-modified: 2023-11-13T16:02:39Z rpki-ov-state: valid route: 122.144.30.0/24 descr: TIG Domestic Network origin: AS38081 mnt-by: MAINT-AS38082 changed: apisit_cha [at] truecorp.co.th 20080721 source: RADB last-modified: 2023-11-13T16:02:39Z rpki-ov-state: valid route: 122.144.31.0/24 descr: TIG Domestic Network origin: AS38081 mnt-by: MAINT-AS38082 changed: apisit_cha [at] truecorp.co.th 20080721 source: RADB last-modified: 2023-11-13T16:02:39Z rpki-ov-state: valid