These entries are queried from radb.net using whois, you can try my project getting these.
:AS55890 route: 202.253.244.0/23 descr: Suntory Business Expert Limited origin: AS55890 mnt-by: MAINT-AS2497 changed: shuhei-o [at] iij.ad.jp 20231215 source: JPIRR rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 202.253.244.0/23 descr: Suntory Business Expert Limited origin: AS55890 mnt-by: MAINT-AS2497 changed: y-yomogita [at] iij.ad.jp 20110725 source: RADB last-modified: 2023-11-13T15:41:20Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 202.253.245.0/24 descr: IIJ Customer route origin: AS55890 mnt-by: MAINT-AS2497 changed: noc [at] iij.ad.jp 20190814 source: RADB last-modified: 2023-11-13T15:57:03Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 202.253.245.0/24 descr: IIJ Customer route origin: AS55890 mnt-by: MAINT-AS2497 changed: shuhei-o [at] iij.ad.jp 20231215 source: JPIRR rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 202.253.246.0/24 descr: Suntory Business Expert Limited origin: AS55890 mnt-by: MAINT-AS2497 changed: shuhei-o [at] iij.ad.jp 20231215 source: JPIRR rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 202.253.246.0/24 descr: Suntory Business Expert Limited origin: AS55890 mnt-by: MAINT-AS2497 changed: noc [at] iij.ad.jp 20160115 source: RADB last-modified: 2023-11-13T15:48:30Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 202.253.247.0/24 descr: Suntory Business Expert Limited origin: AS55890 mnt-by: MAINT-AS2497 changed: shuhei-o [at] iij.ad.jp 20231215 source: JPIRR rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 202.253.247.0/24 descr: Suntory Business Expert Limited origin: AS55890 mnt-by: MAINT-AS2497 changed: noc [at] iij.ad.jp 20160108 source: RADB last-modified: 2023-11-13T15:48:30Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2001:df0:2c2::/48 descr: Suntory Business Expert Limited origin: AS55890 mnt-by: MAINT-AS2497 changed: shuhei-o [at] iij.ad.jp 20231215 source: JPIRR rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2001:df0:2c2::/48 descr: Suntory Business Expert Limited origin: AS55890 mnt-by: MAINT-AS2497 changed: noc [at] iij.ad.jp 20160204 source: RADB last-modified: 2023-11-13T15:48:32Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source