These entries are queried from radb.net using whois, you can try my project getting these.
:AS138458 route: 103.131.32.0/23 origin: AS138458 descr: Singapore Telecommunications SingNet Pte Ltd 31 Exeter Road Comcentre Singapore 239732 remarks: This route object was created for a SingNet customer route. Please contact singnet-routing [at] singnet.com.sg if you have any questions regarding this object. mnt-by: MAINT-AS3758 changed: masmar [at] singtel.com 20190301 #09:40:38Z source: RADB last-modified: 2023-11-13T15:55:42Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 103.131.32.0/23 origin: AS138458 descr: NEC ASIA PACIFIC PTE LTD 80 Bendemeer Road #05-01/02 mnt-by: MAINT-NAPPL-SG last-modified: 2020-02-27T07:08:22Z source: APNIC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source