These entries are queried from radb.net using whois, you can try my project getting these.
:AS37907 route: 103.242.28.0/22 descr: DRNET origin: AS37907 mnt-by: MAINT-AS7684 changed: peer [at] sakura.ad.jp 20150917 source: RADB last-modified: 2023-11-13T15:48:09Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 103.242.28.0/22 descr: DRNET origin: AS37907 mnt-by: MAINT-AS7684 changed: peer [at] sakura.ad.jp 20230801 source: JPIRR rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 103.242.28.0/24 origin: AS37907 descr: DRNET mnt-by: MAINT-AS7506 changed: network [at] gmo.jp 20240130 # 0102Z source: RADB last-modified: 2024-01-30T01:36:43Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 103.242.29.0/24 origin: AS37907 descr: DRNET mnt-by: MAINT-AS7506 changed: network [at] gmo.jp 20240130 # 0102Z source: RADB last-modified: 2024-01-30T01:36:43Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 103.242.30.0/24 origin: AS37907 descr: DRNET mnt-by: MAINT-AS7506 changed: network [at] gmo.jp 20240130 # 0102Z source: RADB last-modified: 2024-01-30T01:36:43Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 103.242.31.0/24 origin: AS37907 descr: DRNET mnt-by: MAINT-AS7506 changed: network [at] gmo.jp 20240130 # 0102Z source: RADB last-modified: 2024-01-30T01:36:43Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 183.90.176.0/21 descr: DRNET origin: AS37907 mnt-by: MAINT-AS7684 changed: peer [at] sakura.ad.jp 20230801 source: JPIRR rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 183.90.176.0/21 descr: DRNET origin: AS37907 mnt-by: MAINT-AS7684 changed: peer [at] sakura.ad.jp 20150917 source: RADB last-modified: 2023-11-13T15:48:09Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 183.90.176.0/24 origin: AS37907 descr: DRNET mnt-by: MAINT-AS7506 changed: network [at] gmo.jp 20240130 # 0102Z source: RADB last-modified: 2024-01-30T01:36:43Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 183.90.177.0/24 origin: AS37907 descr: DRNET mnt-by: MAINT-AS7506 changed: network [at] gmo.jp 20240130 # 0102Z source: RADB last-modified: 2024-01-30T01:36:43Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 183.90.178.0/24 origin: AS37907 descr: DRNET mnt-by: MAINT-AS7506 changed: network [at] gmo.jp 20240130 # 0102Z source: RADB last-modified: 2024-01-30T01:36:43Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 183.90.179.0/24 origin: AS37907 descr: DRNET mnt-by: MAINT-AS7506 changed: network [at] gmo.jp 20240130 # 0102Z source: RADB last-modified: 2024-01-30T01:36:43Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 183.90.180.0/24 origin: AS37907 descr: DRNET mnt-by: MAINT-AS7506 changed: network [at] gmo.jp 20240130 # 0102Z source: RADB last-modified: 2024-01-30T01:36:43Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 183.90.181.0/24 origin: AS37907 descr: DRNET mnt-by: MAINT-AS7506 changed: network [at] gmo.jp 20240130 # 0102Z source: RADB last-modified: 2024-01-30T01:36:43Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 183.90.182.0/24 origin: AS37907 descr: DRNET mnt-by: MAINT-AS7506 changed: network [at] gmo.jp 20240130 # 0102Z source: RADB last-modified: 2024-01-30T01:36:43Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 183.90.183.0/24 origin: AS37907 descr: DRNET mnt-by: MAINT-AS7506 changed: network [at] gmo.jp 20240130 # 0102Z source: RADB last-modified: 2024-01-30T01:36:43Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 202.172.24.0/21 descr: DRNET origin: AS37907 mnt-by: MAINT-AS7684 changed: peer [at] sakura.ad.jp 20150917 source: RADB last-modified: 2023-11-13T15:48:09Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 202.172.24.0/21 descr: DRNET origin: AS37907 mnt-by: MAINT-AS7684 changed: peer [at] sakura.ad.jp 20230801 source: JPIRR rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 202.172.24.0/24 origin: AS37907 descr: DRNET mnt-by: MAINT-AS7506 changed: network [at] gmo.jp 20240130 # 0102Z source: RADB last-modified: 2024-01-30T01:36:43Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 202.172.25.0/24 origin: AS37907 descr: DRNET mnt-by: MAINT-AS7506 changed: network [at] gmo.jp 20240130 # 0102Z source: RADB last-modified: 2024-01-30T01:36:43Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 202.172.26.0/24 origin: AS37907 descr: DRNET mnt-by: MAINT-AS7506 changed: network [at] gmo.jp 20240130 # 0102Z source: RADB last-modified: 2024-01-30T01:36:43Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 202.172.27.0/24 origin: AS37907 descr: DRNET mnt-by: MAINT-AS7506 changed: network [at] gmo.jp 20240130 # 0102Z source: RADB last-modified: 2024-01-30T01:36:43Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 202.172.28.0/24 origin: AS37907 descr: DRNET mnt-by: MAINT-AS7506 changed: network [at] gmo.jp 20240130 # 0102Z source: RADB last-modified: 2024-01-30T01:36:43Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 202.172.29.0/24 origin: AS37907 descr: DRNET mnt-by: MAINT-AS7506 changed: network [at] gmo.jp 20240130 # 0102Z source: RADB last-modified: 2024-01-30T01:36:43Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 202.172.30.0/24 origin: AS37907 descr: DRNET mnt-by: MAINT-AS7506 changed: network [at] gmo.jp 20240130 # 0102Z source: RADB last-modified: 2024-01-30T01:36:43Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 202.172.31.0/24 origin: AS37907 descr: DRNET mnt-by: MAINT-AS7506 changed: network [at] gmo.jp 20240130 # 0102Z source: RADB last-modified: 2024-01-30T01:36:43Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source