These entries are queried from radb.net using whois, you can try my project getting these.
:AS9972 route: 45.113.48.0/22 descr: INT MANAGEMENT origin: AS9972 mnt-by: MAINT-AS4766 changed: ipnoc [at] kt.com 20150312 #02:16:24Z source: RADB last-modified: 2023-11-13T16:15:44Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 49.113.48.0/22 descr: Proxy-Registered Route Object by LG U+(AS3786) origin: AS9972 remarks: This route object is for a LG U+'s customer route remarks: which is being exported under this origin AS. remarks: remarks: This route object was automatically created to prevent remarks: some LG U+ peer from rejecting this route because remarks: they may create their filter based on Route Registry DB. mnt-by: MAINT-AS3786 changed: infonoc [at] lguplus.co.kr 20150312 source: RADB last-modified: 2023-11-13T16:09:28Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 103.52.200.0/22 descr: Proxy-Registered Route Object by LG U+(AS3786) origin: AS9972 remarks: This route object is for a LG U+'s customer route remarks: which is being exported under this origin AS. remarks: remarks: This route object was automatically created to prevent remarks: some LG U+ peer from rejecting this route because remarks: they may create their filter based on Route Registry DB. mnt-by: MAINT-AS3786 changed: infonoc [at] lguplus.co.kr 20150312 source: RADB last-modified: 2023-11-13T16:09:28Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source