These entries are queried from radb.net using whois, you can try my project getting these.
:AS55899 route: 103.171.16.0/23 descr: Leon Technology ,Inc. origin: AS55899 notify: koyanagi [at] leon-tec.co.jp mnt-by: MAINT-AS55899 changed: koyanagi [at] leon-tec.co.jp 20211011 changed: koyanagi [at] leon-tec.co.jp 20220414 changed: koyanagi [at] leon-tec.co.jp 20230308 changed: koyanagi [at] leon-tec.co.jp 20240117 source: JPIRR rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 183.182.32.0/19 descr: Leon Technology ,Inc. origin: AS55899 notify: koyanagi [at] leon-tec.co.jp mnt-by: MAINT-AS55899 changed: n.morozumi [at] steady-inc.net 20151225 changed: n.morozumi [at] steady-inc.net 20160401 changed: t.horikoshi [at] steady-inc.net 20161003 changed: koyanagi [at] leon-tec.co.jp 20170425 changed: koyanagi [at] leon-tec.co.jp 20171006 changed: koyanagi [at] leon-tec.co.jp 20180403 changed: koyanagi [at] leon-tec.co.jp 20181018 changed: koyanagi [at] leon-tec.co.jp 20190531 changed: koyanagi [at] leon-tec.co.jp 20191021 changed: koyanagi [at] leon-tec.co.jp 20200508 changed: koyanagi [at] leon-tec.co.jp 20201008 changed: koyanagi [at] leon-tec.co.jp 20210407 changed: koyanagi [at] leon-tec.co.jp 20211011 changed: koyanagi [at] leon-tec.co.jp 20220414 changed: koyanagi [at] leon-tec.co.jp 20230308 changed: koyanagi [at] leon-tec.co.jp 20240117 source: JPIRR rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 183.182.32.0/21 descr: PACNET (proxy-registered route object) origin: AS55899 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 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: radb [at] asianetcom.net 20140109 #07:30:24Z source: RADB last-modified: 2023-11-13T15:58:55Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 183.182.32.0/21 descr: Leon Technology ,Inc. origin: AS55899 notify: koyanagi [at] leon-tec.co.jp mnt-by: MAINT-AS55899 changed: n.morozumi [at] steady-inc.net 20151225 changed: n.morozumi [at] steady-inc.net 20160401 changed: t.horikoshi [at] steady-inc.net 20161003 changed: koyanagi [at] leon-tec.co.jp 20170425 changed: koyanagi [at] leon-tec.co.jp 20171006 changed: koyanagi [at] leon-tec.co.jp 20180403 changed: koyanagi [at] leon-tec.co.jp 20181018 changed: koyanagi [at] leon-tec.co.jp 20190531 changed: koyanagi [at] leon-tec.co.jp 20191021 changed: koyanagi [at] leon-tec.co.jp 20200508 changed: koyanagi [at] leon-tec.co.jp 20201008 changed: koyanagi [at] leon-tec.co.jp 20210407 changed: koyanagi [at] leon-tec.co.jp 20211011 changed: koyanagi [at] leon-tec.co.jp 20220414 changed: koyanagi [at] leon-tec.co.jp 20230308 changed: koyanagi [at] leon-tec.co.jp 20240117 source: JPIRR rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 183.182.40.0/22 descr: Leon Technology ,Inc. origin: AS55899 notify: koyanagi [at] leon-tec.co.jp mnt-by: MAINT-AS55899 changed: n.morozumi [at] steady-inc.net 20151225 changed: n.morozumi [at] steady-inc.net 20160401 changed: t.horikoshi [at] steady-inc.net 20161003 changed: koyanagi [at] leon-tec.co.jp 20170425 changed: koyanagi [at] leon-tec.co.jp 20171006 changed: koyanagi [at] leon-tec.co.jp 20180403 changed: koyanagi [at] leon-tec.co.jp 20181018 changed: koyanagi [at] leon-tec.co.jp 20190531 changed: koyanagi [at] leon-tec.co.jp 20191021 changed: koyanagi [at] leon-tec.co.jp 20200508 changed: koyanagi [at] leon-tec.co.jp 20201008 changed: koyanagi [at] leon-tec.co.jp 20210407 changed: koyanagi [at] leon-tec.co.jp 20211011 changed: koyanagi [at] leon-tec.co.jp 20220414 changed: koyanagi [at] leon-tec.co.jp 20230308 changed: koyanagi [at] leon-tec.co.jp 20240117 source: JPIRR rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 183.182.44.0/22 descr: Leon Technology ,Inc. origin: AS55899 notify: koyanagi [at] leon-tec.co.jp mnt-by: MAINT-AS55899 changed: n.morozumi [at] steady-inc.net 20151225 changed: n.morozumi [at] steady-inc.net 20160401 changed: t.horikoshi [at] steady-inc.net 20161003 changed: koyanagi [at] leon-tec.co.jp 20170425 changed: koyanagi [at] leon-tec.co.jp 20171006 changed: koyanagi [at] leon-tec.co.jp 20180403 changed: koyanagi [at] leon-tec.co.jp 20181018 changed: koyanagi [at] leon-tec.co.jp 20190531 changed: koyanagi [at] leon-tec.co.jp 20191021 changed: koyanagi [at] leon-tec.co.jp 20200508 changed: koyanagi [at] leon-tec.co.jp 20201008 changed: koyanagi [at] leon-tec.co.jp 20210407 changed: koyanagi [at] leon-tec.co.jp 20211011 changed: koyanagi [at] leon-tec.co.jp 20220414 changed: koyanagi [at] leon-tec.co.jp 20230308 changed: koyanagi [at] leon-tec.co.jp 20240117 source: JPIRR rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 183.182.44.0/22 descr: PACNET (proxy-registered route object) origin: AS55899 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 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: radb [at] asianetcom.net 20140109 #07:37:34Z source: RADB last-modified: 2023-11-13T15:58:55Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 183.182.48.0/21 descr: PACNET (proxy-registered route object) origin: AS55899 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 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: radb [at] asianetcom.net 20140109 #07:35:48Z source: RADB last-modified: 2023-11-13T15:58:55Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 183.182.48.0/21 descr: Leon Technology ,Inc. origin: AS55899 notify: koyanagi [at] leon-tec.co.jp mnt-by: MAINT-AS55899 changed: n.morozumi [at] steady-inc.net 20151225 changed: n.morozumi [at] steady-inc.net 20160401 changed: t.horikoshi [at] steady-inc.net 20161003 changed: koyanagi [at] leon-tec.co.jp 20170425 changed: koyanagi [at] leon-tec.co.jp 20171006 changed: koyanagi [at] leon-tec.co.jp 20180403 changed: koyanagi [at] leon-tec.co.jp 20181018 changed: koyanagi [at] leon-tec.co.jp 20190531 changed: koyanagi [at] leon-tec.co.jp 20191021 changed: koyanagi [at] leon-tec.co.jp 20200508 changed: koyanagi [at] leon-tec.co.jp 20201008 changed: koyanagi [at] leon-tec.co.jp 20210407 changed: koyanagi [at] leon-tec.co.jp 20211011 changed: koyanagi [at] leon-tec.co.jp 20220414 changed: koyanagi [at] leon-tec.co.jp 20230308 changed: koyanagi [at] leon-tec.co.jp 20240117 source: JPIRR rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 183.182.56.0/22 descr: Leon Technology ,Inc. origin: AS55899 notify: koyanagi [at] leon-tec.co.jp mnt-by: MAINT-AS55899 changed: n.morozumi [at] steady-inc.net 20151225 changed: n.morozumi [at] steady-inc.net 20160401 changed: t.horikoshi [at] steady-inc.net 20161003 changed: koyanagi [at] leon-tec.co.jp 20170425 changed: koyanagi [at] leon-tec.co.jp 20171006 changed: koyanagi [at] leon-tec.co.jp 20180403 changed: koyanagi [at] leon-tec.co.jp 20181018 changed: koyanagi [at] leon-tec.co.jp 20190531 changed: koyanagi [at] leon-tec.co.jp 20191021 changed: koyanagi [at] leon-tec.co.jp 20200508 changed: koyanagi [at] leon-tec.co.jp 20201008 changed: koyanagi [at] leon-tec.co.jp 20210407 changed: koyanagi [at] leon-tec.co.jp 20211011 changed: koyanagi [at] leon-tec.co.jp 20220414 changed: koyanagi [at] leon-tec.co.jp 20230308 changed: koyanagi [at] leon-tec.co.jp 20240117 source: JPIRR rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 183.182.61.0/24 descr: Leon Technology ,Inc. origin: AS55899 notify: koyanagi [at] leon-tec.co.jp mnt-by: MAINT-AS55899 changed: n.morozumi [at] steady-inc.net 20151225 changed: n.morozumi [at] steady-inc.net 20160401 changed: t.horikoshi [at] steady-inc.net 20161003 changed: koyanagi [at] leon-tec.co.jp 20170425 changed: koyanagi [at] leon-tec.co.jp 20171006 changed: koyanagi [at] leon-tec.co.jp 20180403 changed: koyanagi [at] leon-tec.co.jp 20181018 changed: koyanagi [at] leon-tec.co.jp 20190531 changed: koyanagi [at] leon-tec.co.jp 20191021 changed: koyanagi [at] leon-tec.co.jp 20200508 changed: koyanagi [at] leon-tec.co.jp 20201008 changed: koyanagi [at] leon-tec.co.jp 20210407 changed: koyanagi [at] leon-tec.co.jp 20211011 changed: koyanagi [at] leon-tec.co.jp 20220414 changed: koyanagi [at] leon-tec.co.jp 20230308 changed: koyanagi [at] leon-tec.co.jp 20240117 source: JPIRR rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 219.100.220.0/22 descr: Leon Technology ,Inc. origin: AS55899 notify: koyanagi [at] leon-tec.co.jp mnt-by: MAINT-AS55899 changed: koyanagi [at] leon-tec.co.jp 20170824 changed: koyanagi [at] leon-tec.co.jp 20171006 changed: koyanagi [at] leon-tec.co.jp 20180403 changed: koyanagi [at] leon-tec.co.jp 20181018 changed: koyanagi [at] leon-tec.co.jp 20190531 changed: koyanagi [at] leon-tec.co.jp 20191021 changed: koyanagi [at] leon-tec.co.jp 20200508 changed: koyanagi [at] leon-tec.co.jp 20201008 changed: koyanagi [at] leon-tec.co.jp 20210407 changed: koyanagi [at] leon-tec.co.jp 20211011 changed: koyanagi [at] leon-tec.co.jp 20220414 changed: koyanagi [at] leon-tec.co.jp 20230308 changed: koyanagi [at] leon-tec.co.jp 20240117 source: JPIRR rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2401:2540::/32 descr: Leon Technology ,Inc. origin: AS55899 notify: koyanagi [at] leon-tec.co.jp mnt-by: MAINT-AS55899 changed: koyanagi [at] leon-tec.co.jp 20170824 changed: koyanagi [at] leon-tec.co.jp 20171006 changed: koyanagi [at] leon-tec.co.jp 20180403 changed: koyanagi [at] leon-tec.co.jp 20181018 changed: koyanagi [at] leon-tec.co.jp 20190531 changed: koyanagi [at] leon-tec.co.jp 20191021 changed: koyanagi [at] leon-tec.co.jp 20200508 changed: koyanagi [at] leon-tec.co.jp 20201008 changed: koyanagi [at] leon-tec.co.jp 20210407 changed: koyanagi [at] leon-tec.co.jp 20211011 changed: koyanagi [at] leon-tec.co.jp 20220414 changed: koyanagi [at] leon-tec.co.jp 20230308 changed: koyanagi [at] leon-tec.co.jp 20240117 source: JPIRR rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2407:bc40::/32 descr: Leon Technology ,Inc. origin: AS55899 notify: koyanagi [at] leon-tec.co.jp mnt-by: MAINT-AS55899 changed: koyanagi [at] leon-tec.co.jp 20211011 changed: koyanagi [at] leon-tec.co.jp 20220414 changed: koyanagi [at] leon-tec.co.jp 20230308 changed: koyanagi [at] leon-tec.co.jp 20240117 source: JPIRR rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source