These entries are queried from radb.net using whois, you can try my project getting these.
:AS18274 route: 103.82.88.0/22 descr: Utsunomiya Cable TV maintainer origin: AS18274 notify: admin [at] ucatv.ne.jp mnt-by: MAINT-UCATV changed: ydoi [at] ucatv.ne.jp 20230524 source: JPIRR rpki-ov-state: valid route: 116.118.208.0/20 descr: Utsunomiya Cable TV maintaine origin: AS18274 notify: ydoi [at] ucatv.ne.jp mnt-by: MAINT-AS18274 changed: t.maruyama [at] ntt.com 20070601 source: NTTCOM rpki-ov-state: valid route: 116.118.208.0/20 descr: Utsunomiya Cable TV maintainer origin: AS18274 notify: admin [at] ucatv.ne.jp mnt-by: MAINT-UCATV changed: ydoi [at] ucatv.ne.jp 20230524 source: JPIRR rpki-ov-state: valid route: 116.118.208.0/20 descr: PACNET (proxy-registered route object) origin: AS18274 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 PACNET peers filter based on these objects this route may be rejected if this object is not created. + Please contact abuse [at] pacnet.net if you have any Concerns regarding Spam/Abuses related to this object + 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 20100201 source: RADB last-modified: 2023-11-13T15:58:53Z rpki-ov-state: valid route: 116.118.208.0/21 descr: Utsunomiya Cable TV maintainer origin: AS18274 notify: admin [at] ucatv.ne.jp mnt-by: MAINT-UCATV changed: ydoi [at] ucatv.ne.jp 20230524 source: JPIRR rpki-ov-state: valid route: 116.118.208.0/21 descr: Utsunomiya Cable TV maintaine origin: AS18274 notify: ydoi [at] ucatv.ne.jp mnt-by: MAINT-AS18274 changed: t.maruyama [at] ntt.com 20090313 source: NTTCOM rpki-ov-state: valid route: 116.118.216.0/21 descr: Utsunomiya Cable TV maintainer origin: AS18274 notify: admin [at] ucatv.ne.jp mnt-by: MAINT-UCATV changed: ydoi [at] ucatv.ne.jp 20230524 source: JPIRR rpki-ov-state: valid route: 116.118.216.0/21 descr: Utsunomiya Cable TV maintaine origin: AS18274 notify: ydoi [at] ucatv.ne.jp mnt-by: MAINT-AS18274 changed: t.maruyama [at] ntt.com 20090313 source: NTTCOM rpki-ov-state: valid route: 202.173.96.0/20 descr: Utsunomiya Cable TV maintaine origin: AS18274 notify: ydoi [at] ucatv.ne.jp mnt-by: MAINT-AS18274 changed: r.sakai [at] ntt.com 20060531 source: NTTCOM rpki-ov-state: valid route: 202.173.96.0/20 descr: Utsunomiya Cable TV maintainer origin: AS18274 notify: admin [at] ucatv.ne.jp mnt-by: MAINT-UCATV changed: ydoi [at] ucatv.ne.jp 20230524 source: JPIRR rpki-ov-state: valid route: 202.173.96.0/21 descr: Utsunomiya Cable TV maintaine origin: AS18274 notify: ydoi [at] ucatv.ne.jp mnt-by: MAINT-AS18274 changed: t.maruyama [at] ntt.com 20090313 source: NTTCOM rpki-ov-state: valid route: 202.173.96.0/21 descr: Utsunomiya Cable TV maintainer origin: AS18274 notify: admin [at] ucatv.ne.jp mnt-by: MAINT-UCATV changed: ydoi [at] ucatv.ne.jp 20230524 source: JPIRR rpki-ov-state: valid route: 202.173.104.0/21 descr: Utsunomiya Cable TV maintaine origin: AS18274 notify: ydoi [at] ucatv.ne.jp mnt-by: MAINT-AS18274 changed: t.maruyama [at] ntt.com 20090313 source: NTTCOM rpki-ov-state: valid route: 202.173.104.0/21 descr: Utsunomiya Cable TV maintainer origin: AS18274 notify: admin [at] ucatv.ne.jp mnt-by: MAINT-UCATV changed: ydoi [at] ucatv.ne.jp 20230524 source: JPIRR rpki-ov-state: valid route: 202.208.64.0/20 descr: Utsunomiya Cable TV maintainer origin: AS18274 notify: admin [at] ucatv.ne.jp mnt-by: MAINT-UCATV changed: ydoi [at] ucatv.ne.jp 20231011 source: JPIRR rpki-ov-state: valid route: 210.236.112.0/20 descr: Utsunomiya Cable TV maintainer origin: AS18274 notify: admin [at] ucatv.ne.jp mnt-by: MAINT-UCATV changed: ydoi [at] ucatv.ne.jp 20230524 source: JPIRR rpki-ov-state: valid route: 210.236.112.0/20 descr: Utsunomiya Cable TV maintaine origin: AS18274 notify: ydoi [at] ucatv.ne.jp mnt-by: MAINT-AS18274 changed: r.sakai [at] ntt.com 20060531 source: NTTCOM rpki-ov-state: valid route: 210.236.112.0/21 descr: Utsunomiya Cable TV maintaine origin: AS18274 notify: ydoi [at] ucatv.ne.jp mnt-by: MAINT-AS18274 changed: t.maruyama [at] ntt.com 20090313 source: NTTCOM rpki-ov-state: valid route: 210.236.112.0/21 descr: Utsunomiya Cable TV maintainer origin: AS18274 notify: admin [at] ucatv.ne.jp mnt-by: MAINT-UCATV changed: ydoi [at] ucatv.ne.jp 20230524 source: JPIRR rpki-ov-state: valid route: 210.236.120.0/21 descr: Utsunomiya Cable TV maintainer origin: AS18274 notify: admin [at] ucatv.ne.jp mnt-by: MAINT-UCATV changed: ydoi [at] ucatv.ne.jp 20230524 source: JPIRR rpki-ov-state: valid route: 210.236.120.0/21 descr: Utsunomiya Cable TV maintaine origin: AS18274 notify: ydoi [at] ucatv.ne.jp mnt-by: MAINT-AS18274 changed: t.maruyama [at] ntt.com 20090313 source: NTTCOM rpki-ov-state: valid route: 219.100.164.0/22 descr: Utsunomiya Cable TV maintainer origin: AS18274 notify: admin [at] ucatv.ne.jp mnt-by: MAINT-UCATV changed: ydoi [at] ucatv.ne.jp 20230524 source: JPIRR rpki-ov-state: valid route: 219.122.96.0/20 descr: Utsunomiya Cable TV maintainer origin: AS18274 notify: admin [at] ucatv.ne.jp mnt-by: MAINT-UCATV changed: ydoi [at] ucatv.ne.jp 20230524 source: JPIRR rpki-ov-state: valid route: 219.122.96.0/20 descr: Utsunomiya Cable TV maintaine origin: AS18274 notify: ydoi [at] ucatv.ne.jp mnt-by: MAINT-AS18274 changed: r.sakai [at] ntt.com 20060531 source: NTTCOM rpki-ov-state: valid route: 219.122.96.0/21 descr: Utsunomiya Cable TV maintaine origin: AS18274 notify: ydoi [at] ucatv.ne.jp mnt-by: MAINT-AS18274 changed: t.maruyama [at] ntt.com 20090313 source: NTTCOM rpki-ov-state: valid route: 219.122.96.0/21 descr: Utsunomiya Cable TV maintainer origin: AS18274 notify: admin [at] ucatv.ne.jp mnt-by: MAINT-UCATV changed: ydoi [at] ucatv.ne.jp 20230524 source: JPIRR rpki-ov-state: valid route: 219.122.104.0/21 descr: Utsunomiya Cable TV maintaine origin: AS18274 notify: ydoi [at] ucatv.ne.jp mnt-by: MAINT-AS18274 changed: t.maruyama [at] ntt.com 20090313 source: NTTCOM rpki-ov-state: valid route: 219.122.104.0/21 descr: Utsunomiya Cable TV maintainer origin: AS18274 notify: admin [at] ucatv.ne.jp mnt-by: MAINT-UCATV changed: ydoi [at] ucatv.ne.jp 20230524 source: JPIRR rpki-ov-state: valid