These entries are queried from radb.net using whois, you can try my project getting these.
:AS59352 route: 103.255.252.0/24 descr: Austreme Limited origin: AS59352 mnt-by: MAINT-AS4645 changed: radb [at] hknet.com 20140502 #04:18:07Z source: RADB last-modified: 2023-11-13T15:46:19Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 103.255.252.0/24 descr: Proxy-registered route object origin: AS59352 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 20170411 source: NTTCOM rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 103.255.253.0/24 descr: Austreme Limited origin: AS59352 mnt-by: MAINT-AS4645 changed: radb [at] hknet.com 20140502 #04:18:07Z source: RADB last-modified: 2023-11-13T15:46:19Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 103.255.254.0/24 descr: Austreme Limited origin: AS59352 mnt-by: MAINT-AS4645 changed: radb [at] hknet.com 20140502 #04:18:07Z source: RADB last-modified: 2023-11-13T15:46:19Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 103.255.255.0/24 descr: Austreme Limited origin: AS59352 mnt-by: MAINT-AS4645 changed: radb [at] hknet.com 20140502 #04:18:07Z source: RADB last-modified: 2023-11-13T15:46:19Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source