These entries are queried from radb.net using whois, you can try my project getting these.
:AS18281 route: 124.66.192.0/20 descr: Chitahanto Cable Network Corp. origin: AS18281 notify: nic [at] cnci.co.jp mnt-by: MAINT-AS9354 changed: nic [at] cnci.co.jp 20201020 source: NTTCOM rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 124.66.192.0/20 descr: PACNET (proxy-registered route object) origin: AS18281 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: not_found # No ROAs found, or RPKI validation not enabled for source route: 124.66.192.0/20 descr: PACNET (proxy-registered route object) origin: AS18281 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. mnt-by: MAINT-AS7684 changed: peer [at] sakura.ad.jp 20240101 source: JPIRR rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 133.88.32.0/20 descr: Chitahanto Cable Network Corp. origin: AS18281 notify: nic [at] cnci.co.jp mnt-by: MAINT-AS9354 changed: nic [at] cnci.co.jp 20201020 source: NTTCOM rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 133.88.32.0/20 origin: AS18281 descr: Chitahanto Cable Network Corp. admin-c: JP00027336 tech-c: JP00027336 notify: nic [at] cnci.co.jp mnt-by: MAINT-AS9354 changed: as9354 [at] cnci.co.jp 20201020 #08:37:50Z source: RADB last-modified: 2023-11-13T16:02:40Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 133.88.32.0/20 descr: Chitahanto Cable Network Corp. origin: AS18281 notify: nic [at] cnci.co.jp mnt-by: MAINT-AS9354 changed: nic [at] cnci.co.jp 20230901 source: JPIRR rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 157.5.32.0/20 origin: AS18281 descr: Chitahanto Cable Network Corp. admin-c: JP00027336 tech-c: JP00027336 notify: nic [at] cnci.co.jp mnt-by: MAINT-AS9354 changed: as9354 [at] cnci.co.jp 20220425 #09:31:43Z source: RADB last-modified: 2023-11-13T16:10:52Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 157.5.32.0/20 descr: Chitahanto Cable Network Corp. origin: AS18281 notify: nic [at] cnci.co.jp mnt-by: MAINT-AS9354 changed: nic [at] cnci.co.jp 20220426 source: NTTCOM last-modified: 2022-04-26T03:04:46Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 157.5.32.0/20 descr: Chitahanto Cable Network Corp. origin: AS18281 notify: nic [at] cnci.co.jp mnt-by: MAINT-AS9354 changed: nic [at] cnci.co.jp 20240401 source: JPIRR rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 202.216.176.0/20 descr: PACNET (proxy-registered route object) origin: AS18281 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. mnt-by: MAINT-AS7684 changed: peer [at] sakura.ad.jp 20240101 source: JPIRR rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 202.216.176.0/20 descr: PACNET (proxy-registered route object) origin: AS18281 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: 2023-11-13T15:58:52Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 202.216.176.0/20 descr: Tokoname New-TV Corporation origin: AS18281 mnt-by: MAINT-AS18281 changed: yoshi [at] tac-net.co.jp 20030302 source: NTTCOM rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 202.224.16.0/20 descr: Tokoname New-TV Corporation origin: AS18281 mnt-by: MAINT-AS18281 changed: yoshi [at] tac-net.co.jp 20030302 source: NTTCOM rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 202.224.16.0/20 descr: PACNET (proxy-registered route object) origin: AS18281 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: 2023-11-13T15:58:52Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 202.224.16.0/20 descr: PACNET (proxy-registered route object) origin: AS18281 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. mnt-by: MAINT-AS7684 changed: peer [at] sakura.ad.jp 20240101 source: JPIRR rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2405:7000:2c00::/40 descr: CCNC IPv6 Network (AS18281) origin: AS18281 admin-c: JP00006238 tech-c: JP00006238 notify: nic [at] cnci.co.jp mnt-by: MAINT-AS9354 changed: as9354 [at] cnci.co.jp 20180618 #04:59:42Z source: RADB last-modified: 2023-11-13T15:53:48Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2405:7000:2c00::/40 descr: CCNC IPv6 Network (AS18281) origin: AS18281 notify: nic [at] cnci.co.jp mnt-by: MAINT-AS9354 changed: nic [at] cnci.co.jp 20240201 source: JPIRR rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source