These entries are queried from radb.net using whois, you can try my project getting these.
:AS37919 route: 157.109.0.0/16 descr: SEGA SAMMY HOLDINGS INC. origin: AS37919 notify: pf-noc [at] home.segasammy.co.jp mnt-by: MAINT-AS37919 changed: pf-noc [at] home.segasammy.co.jp 20231114 source: JPIRR rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 157.109.0.0/16 origin: AS37919 descr: SEGA SAMMY HOLDINGS INC. admin-c: TK63997JP tech-c: TK63997JP notify: pf-noc [at] home.segasammy.co.jp mnt-by: MAINT-AS37919 changed: pf-noc [at] home.segasammy.co.jp 20211213 #00:42:24Z source: RADB last-modified: 2023-11-13T16:09:03Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 157.109.0.0/24 descr: PACNET (proxy-registered route object) origin: AS37919 remarks: This route object is for a PACNET customer route which is being exported under this origin AS. + This route object was created because no existing route object with the same origin was found, and since some ANC peers filter based on these objects this route may be rejected if this object is not created. + Please contact abuse [at] pacnet.net for any related SPAM/abuse case + Please contact ip-noc [at] pacnet.net if you have any other Questions regarding this object. notify: ip-noc [at] pacnet.net mnt-by: MAINT-AS4637 changed: ip-noc [at] pacnet.net 20140311 source: RADB last-modified: 2023-11-13T15:58:57Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 157.109.66.0/24 descr: SEGA Corporation Contact/Abuse: YU3300JP origin: AS37919 mnt-by: MAINT-AS2519 changed: noc [at] vectant.ad.jp 20130711 #11:23:28Z source: RADB last-modified: 2023-11-13T15:45:27Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 157.109.160.0/22 descr: SEGA SAMMY HOLDINGS INC. origin: AS37919 notify: pf-noc [at] home.segasammy.co.jp mnt-by: MAINT-AS37919 changed: pf-noc [at] home.segasammy.co.jp 20231114 source: JPIRR rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 157.109.160.0/22 origin: AS37919 descr: SEGA SAMMY HOLDINGS INC. admin-c: TK63997JP tech-c: TK63997JP notify: pf-noc [at] home.segasammy.co.jp mnt-by: MAINT-AS37919 changed: pf-noc [at] home.segasammy.co.jp 20211115 #09:45:47Z source: RADB last-modified: 2023-11-13T16:08:40Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source