These entries are queried from radb.net using whois, you can try my project getting these.
:AS63749 route: 103.66.152.0/22 descr: LUXOFT origin: AS63749 mnt-by: MAINT-AS45903 changed: inoc [at] cmctelecom.vn 20161009 #11:18:35Z source: RADB last-modified: 2023-11-13T15:59:23Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 103.66.152.0/22 descr: Luxoft VietNam Company LTD origin: AS63749 mnt-by: MAINT-VN-ETC last-modified: 2016-12-23T04:55:44Z source: APNIC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 103.66.152.0/24 descr: LUXOFT origin: AS63749 mnt-by: MAINT-AS45903 changed: inoc [at] cmctelecom.vn 20161010 #07:09:12Z source: RADB last-modified: 2023-11-13T15:59:23Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 103.66.153.0/24 descr: LUXOFT origin: AS63749 mnt-by: MAINT-AS45903 changed: inoc [at] cmctelecom.vn 20161010 #07:10:22Z source: RADB last-modified: 2023-11-13T15:59:23Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 103.66.154.0/24 descr: LUXOFT origin: AS63749 mnt-by: MAINT-AS45903 changed: inoc [at] cmctelecom.vn 20161010 #07:11:13Z source: RADB last-modified: 2023-11-13T15:59:23Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 103.66.155.0/24 descr: LUXOFT origin: AS63749 mnt-by: MAINT-AS45903 changed: inoc [at] cmctelecom.vn 20161010 #07:11:46Z source: RADB last-modified: 2023-11-13T15:59:23Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source