These entries are queried from radb.net using whois, you can try my project getting these.
:AS38634 route: 119.110.88.0/21 descr: DWANGO Co.,Ltd. origin: AS38634 notify: 2525noc-ext [at] dwango.co.jp mnt-by: MAINT-AS38634 changed: abe-sho [at] kadokawa.jp 20230414 source: JPIRR rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 119.110.88.0/22 descr: DWANGO Co.,Ltd. origin: AS38634 notify: 2525noc-ext [at] dwango.co.jp mnt-by: MAINT-AS38634 changed: abe-sho [at] kadokawa.jp 20230414 source: JPIRR rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 119.110.92.0/22 descr: DWANGO Co.,Ltd. origin: AS38634 notify: 2525noc-ext [at] dwango.co.jp mnt-by: MAINT-AS38634 changed: abe-sho [at] kadokawa.jp 20230414 source: JPIRR rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 133.152.0.0/17 descr: DWANGO Co.,Ltd. origin: AS38634 notify: 2525noc-ext [at] dwango.co.jp mnt-by: MAINT-AS38634 changed: abe-sho [at] kadokawa.jp 20230414 source: JPIRR rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 133.152.0.0/18 descr: DWANGO Co.,Ltd. origin: AS38634 notify: 2525noc-ext [at] dwango.co.jp mnt-by: MAINT-AS38634 changed: abe-sho [at] kadokawa.jp 20230414 source: JPIRR rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 133.152.64.0/18 descr: DWANGO Co.,Ltd. origin: AS38634 notify: 2525noc-ext [at] dwango.co.jp mnt-by: MAINT-AS38634 changed: abe-sho [at] kadokawa.jp 20230414 source: JPIRR rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 202.222.7.0/24 descr: SoftEther Corporation X-Keiro : senotice [at] gmail.com origin: AS38634 notify: senotice [at] gmail.com mnt-by: MAINT-AS59103 changed: senotice [at] gmail.com 20240327 source: JPIRR rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 202.223.8.0/23 descr: DWANGO Co.,Ltd. origin: AS38634 notify: 2525noc-ext [at] dwango.co.jp mnt-by: MAINT-AS38634 changed: abe-sho [at] kadokawa.jp 20230414 source: JPIRR rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 202.223.8.0/24 descr: DWANGO Co.,Ltd. origin: AS38634 notify: 2525noc-ext [at] dwango.co.jp mnt-by: MAINT-AS38634 changed: abe-sho [at] kadokawa.jp 20230414 source: JPIRR rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 202.223.9.0/24 descr: DWANGO Co.,Ltd. origin: AS38634 notify: 2525noc-ext [at] dwango.co.jp mnt-by: MAINT-AS38634 changed: abe-sho [at] kadokawa.jp 20230414 source: JPIRR rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 219.100.39.0/24 descr: SoftEther Corporation X-Keiro : senotice [at] gmail.com origin: AS38634 notify: senotice [at] gmail.com mnt-by: MAINT-AS59103 changed: senotice [at] gmail.com 20240327 source: JPIRR rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2401:af80:6100::/40 descr: SoftEther Corporation X-Keiro : senotice [at] gmail.com origin: AS38634 notify: senotice [at] gmail.com mnt-by: MAINT-AS59103 changed: senotice [at] gmail.com 20240327 source: JPIRR rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2404:ce00::/33 descr: DWANGO Co.,Ltd. origin: AS38634 notify: 2525noc-ext [at] dwango.co.jp mnt-by: MAINT-AS38634 changed: abe-sho [at] kadokawa.jp 20230414 source: JPIRR rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2404:ce00:8000::/34 descr: DWANGO Co.,Ltd. origin: AS38634 notify: 2525noc-ext [at] dwango.co.jp mnt-by: MAINT-AS38634 changed: abe-sho [at] kadokawa.jp 20230414 source: JPIRR rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2404:ce00:c000::/35 descr: DWANGO Co.,Ltd. origin: AS38634 notify: 2525noc-ext [at] dwango.co.jp mnt-by: MAINT-AS38634 changed: abe-sho [at] kadokawa.jp 20230414 source: JPIRR rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2404:ce00:e000::/36 descr: DWANGO Co.,Ltd. origin: AS38634 notify: 2525noc-ext [at] dwango.co.jp mnt-by: MAINT-AS38634 changed: abe-sho [at] kadokawa.jp 20230414 source: JPIRR rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2404:ce00:f000::/37 descr: DWANGO Co.,Ltd. origin: AS38634 notify: 2525noc-ext [at] dwango.co.jp mnt-by: MAINT-AS38634 changed: abe-sho [at] kadokawa.jp 20230414 source: JPIRR rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2404:ce00:f800::/38 descr: DWANGO Co.,Ltd. origin: AS38634 notify: 2525noc-ext [at] dwango.co.jp mnt-by: MAINT-AS38634 changed: abe-sho [at] kadokawa.jp 20230414 source: JPIRR rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2404:ce00:fc00::/39 descr: DWANGO Co.,Ltd. origin: AS38634 notify: 2525noc-ext [at] dwango.co.jp mnt-by: MAINT-AS38634 changed: abe-sho [at] kadokawa.jp 20230414 source: JPIRR rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2404:ce00:fe00::/40 descr: DWANGO Co.,Ltd. origin: AS38634 notify: 2525noc-ext [at] dwango.co.jp mnt-by: MAINT-AS38634 changed: abe-sho [at] kadokawa.jp 20230414 source: JPIRR rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source