These entries are queried from radb.net using whois, you can try my project getting these.
:AS38422 route: 210.110.8.0/21 descr: SEOWON UNIVERSITY origin: AS38422 mnt-by: MAINT-AS3786 changed: infonoc [at] lguplus.co.kr source: RADB last-modified: 2023-12-18T03:20:02Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 211.42.186.0/24 descr: SEOWON UNIVERSITY origin: AS38422 mnt-by: MAINT-AS3786 changed: infonoc [at] lguplus.co.kr source: RADB last-modified: 2023-12-18T03:20:02Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 211.42.241.0/24 descr: SEOWON UNIVERSITY origin: AS38422 mnt-by: MAINT-AS3786 changed: infonoc [at] lguplus.co.kr source: RADB last-modified: 2023-12-18T03:20:02Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 211.42.254.0/24 descr: SEOWON UNIVERSITY origin: AS38422 mnt-by: MAINT-AS3786 changed: infonoc [at] lguplus.co.kr source: RADB last-modified: 2023-12-18T03:20:02Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 211.170.84.0/24 descr: SEOWON UNIVERSITY origin: AS38422 mnt-by: MAINT-AS3786 changed: infonoc [at] lguplus.co.kr source: RADB last-modified: 2023-12-18T03:20:02Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 211.185.195.0/24 descr: SEOWON UNIVERSITY origin: AS38422 mnt-by: MAINT-AS3786 changed: infonoc [at] lguplus.co.kr source: RADB last-modified: 2023-12-18T03:20:02Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 211.199.232.0/24 descr: SEOWON UNIVERSITY origin: AS38422 mnt-by: MAINT-AS3786 changed: infonoc [at] lguplus.co.kr source: RADB last-modified: 2023-12-18T03:20:02Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 211.230.232.0/24 descr: SEOWON UNIVERSITY origin: AS38422 mnt-by: MAINT-AS3786 changed: infonoc [at] lguplus.co.kr source: RADB last-modified: 2023-12-18T03:20:02Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 211.231.39.0/24 descr: SEOWON UNIVERSITY origin: AS38422 mnt-by: MAINT-AS3786 changed: infonoc [at] lguplus.co.kr source: RADB last-modified: 2023-12-18T03:20:02Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 218.151.122.0/23 descr: SEOWON UNIVERSITY origin: AS38422 mnt-by: MAINT-AS3786 changed: infonoc [at] lguplus.co.kr source: RADB last-modified: 2023-12-18T03:20:02Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 218.151.124.0/22 descr: SEOWON UNIVERSITY origin: AS38422 mnt-by: MAINT-AS3786 changed: infonoc [at] lguplus.co.kr source: RADB last-modified: 2023-12-18T03:20:02Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 218.159.70.0/23 descr: SEOWON UNIVERSITY origin: AS38422 mnt-by: MAINT-AS3786 changed: infonoc [at] lguplus.co.kr source: RADB last-modified: 2023-12-18T03:20:02Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 218.159.72.0/22 descr: SEOWON UNIVERSITY origin: AS38422 mnt-by: MAINT-AS3786 changed: infonoc [at] lguplus.co.kr source: RADB last-modified: 2023-12-18T03:20:02Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 220.83.15.0/24 descr: SEOWON UNIVERSITY origin: AS38422 mnt-by: MAINT-AS3786 changed: infonoc [at] lguplus.co.kr source: RADB last-modified: 2023-12-18T03:20:02Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 220.83.16.0/24 descr: SEOWON UNIVERSITY origin: AS38422 mnt-by: MAINT-AS3786 changed: infonoc [at] lguplus.co.kr source: RADB last-modified: 2023-12-18T03:20:02Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 221.160.151.0/24 descr: SEOWON UNIVERSITY origin: AS38422 mnt-by: MAINT-AS3786 changed: infonoc [at] lguplus.co.kr source: RADB last-modified: 2023-12-18T03:20:02Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 221.160.183.0/24 descr: SEOWON UNIVERSITY origin: AS38422 mnt-by: MAINT-AS3786 changed: infonoc [at] lguplus.co.kr source: RADB last-modified: 2023-12-18T03:20:02Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source