These entries are queried from radb.net using whois, you can try my project getting these.
:AS131737 route: 103.15.248.0/23 descr: Proxy-registered route object origin: AS131737 notify: matthew.chan [at] hgc.com.hk mnt-by: MAINT-HGC-INTL changed: matthew.chan [at] hgc.com.hk 20131101 source: RADB last-modified: 2023-11-13T15:45:50Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 103.15.248.0/24 descr: Proxy-registered route object origin: AS131737 notify: matthew.chan [at] hgc.com.hk mnt-by: MAINT-HGC-INTL changed: matthew.chan [at] hgc.com.hk 20131101 source: RADB last-modified: 2023-11-13T15:45:50Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 103.15.249.0/24 descr: Proxy-registered route object origin: AS131737 notify: matthew.chan [at] hgc.com.hk mnt-by: MAINT-HGC-INTL changed: matthew.chan [at] hgc.com.hk 20131101 source: RADB last-modified: 2023-11-13T15:45:50Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 103.15.250.0/23 descr: Proxy-registered route object origin: AS131737 notify: matthew.chan [at] hgc.com.hk mnt-by: MAINT-HGC-INTL changed: matthew.chan [at] hgc.com.hk 20131101 source: RADB last-modified: 2023-11-13T15:45:50Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 103.15.250.0/24 descr: Proxy-registered route object origin: AS131737 notify: matthew.chan [at] hgc.com.hk mnt-by: MAINT-HGC-INTL changed: matthew.chan [at] hgc.com.hk 20131101 source: RADB last-modified: 2023-11-13T15:45:50Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 103.15.251.0/24 descr: INDONET-Indosat Customer origin: AS131737 mnt-by: MAINT-AS4761 changed: support [at] indosat.com 20130417 #07:44:59Z source: RADB last-modified: 2023-11-13T16:12:49Z rpki-ov-state: valid route: 103.15.251.0/24 descr: Route Object for PT. Jakarta International Container Terminal descr: Jakarta country: ID origin: AS131737 mnt-by: MAINT-ID-JICT last-modified: 2012-10-24T08:10:01Z source: APNIC rpki-ov-state: valid route: 103.15.251.0/24 descr: route-object for AS23947 origin: AS131737 remarks: Transit via AS10217 Customers notify: support [at] ntt.net.id mnt-by: MAINT-AS10217 changed: w.dedi [at] ntt.co.id 20121022 source: NTTCOM rpki-ov-state: valid route: 103.15.251.0/24 descr: Routes announced to Level 3 by BIZNET. origin: AS131737 mnt-by: BIZNET-MNT changed: noc [at] biznetnetworks.com 20161226 source: LEVEL3 rpki-ov-state: valid route: 103.15.251.0/24 descr: Route Object for PT. Jakarta International Container Terminal descr: Jakarta country: ID origin: AS131737 mnt-by: MAINT-ID-JICT last-modified: 2012-10-24T08:10:01Z source: IDNIC rpki-ov-state: valid route6: 2001:df0:446::/48 origin: AS131737 descr: PT JICT mnt-by: MAINT-AS136106 changed: sabirin.muhtar [at] fiberstar.co.id 20221018 #06:54:05Z source: RADB last-modified: 2023-11-13T16:12:45Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source