These entries are queried from radb.net using whois, you can try my project getting these.
:AS7503 route: 210.159.64.0/19 descr: AIR CIDR BLOCK 1 ( AS7503 ) 1-10-4 Kita-shinagawa, Shinagawa-ku, Tokyo, 140-0001, Japan origin: AS7503 mnt-by: MAINT-AS7503 changed: tanaka [at] air.ad.jp 20070822 source: RADB last-modified: 2023-11-13T15:39:53Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 210.166.64.0/19 descr: AIR CIDR BLOCK 2 ( AS7503 ) 1-10-4 Kita-shinagawa, Shinagawa-ku, Tokyo, 140-0001, Japan origin: AS7503 mnt-by: MAINT-AS7503 changed: tanaka [at] air.ad.jp 20070822 source: RADB last-modified: 2023-11-13T15:39:53Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 210.166.72.0/21 descr: AIR Aggregate for Customer Prefixes origin: AS7503 mnt-by: MAINT-AS7503 changed: tanaka [at] air.ad.jp 20070822 source: RADB last-modified: 2023-11-13T15:39:53Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 210.166.72.0/22 descr: AIR Aggregate for Customer Prefixes origin: AS7503 mnt-by: MAINT-AS7503 changed: tanaka [at] air.ad.jp 20070822 source: RADB last-modified: 2023-11-13T15:39:53Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 210.166.76.0/22 descr: AIR Aggregate for Customer Prefixes origin: AS7503 mnt-by: MAINT-AS7503 changed: tanaka [at] air.ad.jp 20070822 source: RADB last-modified: 2023-11-13T15:39:53Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 210.166.92.0/22 descr: AIR Aggregate for Customer Prefixes origin: AS7503 mnt-by: MAINT-AS7503 changed: tanaka [at] air.ad.jp 20130403 #09:29:13Z source: RADB last-modified: 2023-11-13T15:45:23Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2402:3800::/32 descr: AIR IPv6 ADDRESS BLOCK 1 ( AS7503 ) origin: AS7503 mnt-by: MAINT-AS7503 changed: tanaka [at] air.ad.jp 20130403 #09:31:21Z source: RADB last-modified: 2023-11-13T15:45:23Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2402:3800:dc03::/48 descr: AIR Aggregate for Customer Prefixes origin: AS7503 mnt-by: MAINT-AS7503 changed: tanaka [at] air.ad.jp 20130403 #09:31:59Z source: RADB last-modified: 2023-11-13T15:45:23Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source