These entries are queried from radb.net using whois, you can try my project getting these.
:AS17934 route: 202.180.32.0/20 descr: JGN2plus origin: AS17934 remarks: notify: noc-ops [at] jgn2plus.jp mnt-by: MAINT-AS17934 changed: ota [at] jgn2plus.jp 20100212 source: NTTCOM rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 202.180.32.0/21 descr: JGN2plus origin: AS17934 mnt-by: MAINT-AS2519 changed: noc [at] vectant.ad.jp 20140224 #06:32:38Z source: RADB last-modified: 2023-11-13T15:46:14Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 202.180.32.0/21 descr: JGN2plus origin: AS17934 remarks: notify: noc-ops [at] jgn2plus.jp mnt-by: MAINT-AS17934 changed: ota [at] jgn2plus.jp 20100212 source: NTTCOM rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 202.180.32.0/21 descr: JGN2plus origin: AS17934 mnt-by: MAINT-AS7684 changed: peer [at] sakura.ad.jp 20230501 source: JPIRR rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 202.180.32.0/22 descr: JGN2 origin: AS17934 remarks: notify: noc [at] jgn2.jp mnt-by: MAINT-AS17934 changed: kawai [at] jgn2.jp 20040827 source: NTTCOM rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2001:e38::/32 descr: Proxy RO for Telecommunications Advancement Organization origin: AS17934 remarks: contacts per RFC2142: remarks: Abuse / UCE reports abuse [at] ntt.net remarks: Security issues security [at] ntt.net mnt-by: MAINT-NTTCOM-RA changed: chowser [at] us.ntt.net 20180823 source: NTTCOM rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2001:e38::/32 descr: JGN2plus origin: AS17934 mnt-by: MAINT-AS2519 changed: noc [at] vectant.ad.jp 20140224 #06:33:49Z source: RADB last-modified: 2023-11-13T15:46:14Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source