These entries are queried from radb.net using whois, you can try my project getting these.
:AS45255 route: 49.231.28.0/24 descr: SBN route object for Hi-tech Nittsu origin: AS45255 remarks: Please contact sbn-noc [at] ais.co.th if you have any questions regarding this object mnt-by: MAINT-AS45430 changed: sukhumsa [at] ais.co.th 20130726 #10:22:16Z source: RADB last-modified: 2023-11-13T15:45:33Z rpki-ov-state: valid route: 58.137.60.0/24 descr: CSLoxinfo route object for Hi-tech Nittsu (Thailand) Co.,Ltd. origin: AS45255 mnt-by: MAINT-AS4750 changed: bgpadmin [at] csloxinfo.net 20070419 changed: bgpadmin [at] csloxinfo.net 20080720 #10:16:38Z source: RADB last-modified: 2023-11-13T15:39:55Z rpki-ov-state: valid route: 58.137.60.0/24 descr: Proxy-registered route object origin: AS45255 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 20100224 source: NTTCOM rpki-ov-state: valid