These entries are queried from radb.net using whois, you can try my project getting these.
:AS49904 route6: 2602:feda:d0::/44 descr: Kosaka Network origin: AS49904 notify: nat [at] nat.moe mnt-by: MNT-NRL-25 changed: nat [at] nat.moe 20170924 source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2602:feda:d0::/48 descr: Kosaka American Anycast Network origin: AS49904 mnt-by: KOSAKA-MNT created: 2017-09-30T13:11:54Z last-modified: 2018-09-04T19:46:18Z source: RIPE-NONAUTH remarks: **************************** remarks: * THIS OBJECT IS MODIFIED remarks: * Please note that all data that is generally regarded as personal remarks: * data has been removed from this object. remarks: * To view the original object, please query the RIPE Database at: remarks: * http://www.ripe.net/whois remarks: **************************** rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2602:feda:d1::/48 descr: Kosaka Los Angeles Network origin: AS49904 mnt-by: KOSAKA-MNT created: 2017-09-30T13:13:07Z last-modified: 2018-09-04T19:46:19Z source: RIPE-NONAUTH remarks: **************************** remarks: * THIS OBJECT IS MODIFIED remarks: * Please note that all data that is generally regarded as personal remarks: * data has been removed from this object. remarks: * To view the original object, please query the RIPE Database at: remarks: * http://www.ripe.net/whois remarks: **************************** rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2602:feda:d2::/48 descr: Kosaka Fremont Network origin: AS49904 mnt-by: KOSAKA-MNT created: 2017-09-30T13:12:27Z last-modified: 2018-09-04T19:46:18Z source: RIPE-NONAUTH remarks: **************************** remarks: * THIS OBJECT IS MODIFIED remarks: * Please note that all data that is generally regarded as personal remarks: * data has been removed from this object. remarks: * To view the original object, please query the RIPE Database at: remarks: * http://www.ripe.net/whois remarks: **************************** rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2602:feda:d3::/48 descr: Kosaka New York Network origin: AS49904 mnt-by: KOSAKA-MNT created: 2017-09-30T13:12:38Z last-modified: 2018-09-04T19:46:19Z source: RIPE-NONAUTH remarks: **************************** remarks: * THIS OBJECT IS MODIFIED remarks: * Please note that all data that is generally regarded as personal remarks: * data has been removed from this object. remarks: * To view the original object, please query the RIPE Database at: remarks: * http://www.ripe.net/whois remarks: **************************** rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2602:feda:d4::/48 descr: Kosaka Miami Network origin: AS49904 mnt-by: KOSAKA-MNT created: 2017-09-30T13:12:47Z last-modified: 2018-09-04T19:46:19Z source: RIPE-NONAUTH remarks: **************************** remarks: * THIS OBJECT IS MODIFIED remarks: * Please note that all data that is generally regarded as personal remarks: * data has been removed from this object. remarks: * To view the original object, please query the RIPE Database at: remarks: * http://www.ripe.net/whois remarks: **************************** rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2602:feda:d5::/48 descr: Kosaka Seattle Network origin: AS49904 mnt-by: KOSAKA-MNT created: 2017-10-06T20:10:17Z last-modified: 2018-09-04T19:46:26Z source: RIPE-NONAUTH remarks: **************************** remarks: * THIS OBJECT IS MODIFIED remarks: * Please note that all data that is generally regarded as personal remarks: * data has been removed from this object. remarks: * To view the original object, please query the RIPE Database at: remarks: * http://www.ripe.net/whois remarks: **************************** rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2a0b:4340:d0::/44 descr: Kosaka Network origin: AS49904 mnt-by: KOSAKA-MNT created: 2017-09-01T15:28:20Z last-modified: 2017-09-01T15:28:46Z source: RIPE remarks: **************************** remarks: * THIS OBJECT IS MODIFIED remarks: * Please note that all data that is generally regarded as personal remarks: * data has been removed from this object. remarks: * To view the original object, please query the RIPE Database at: remarks: * http://www.ripe.net/whois remarks: **************************** rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2a0b:4340:d0::/48 descr: Kosaka Anycast Network origin: AS49904 mnt-by: KOSAKA-MNT created: 2017-09-01T15:29:17Z last-modified: 2017-09-01T15:29:17Z source: RIPE remarks: **************************** remarks: * THIS OBJECT IS MODIFIED remarks: * Please note that all data that is generally regarded as personal remarks: * data has been removed from this object. remarks: * To view the original object, please query the RIPE Database at: remarks: * http://www.ripe.net/whois remarks: **************************** rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2a0b:4340:d3::/48 descr: Kosaka Hong Kong Network origin: AS49904 mnt-by: KOSAKA-MNT created: 2017-09-30T13:11:02Z last-modified: 2017-09-30T13:11:02Z source: RIPE remarks: **************************** remarks: * THIS OBJECT IS MODIFIED remarks: * Please note that all data that is generally regarded as personal remarks: * data has been removed from this object. remarks: * To view the original object, please query the RIPE Database at: remarks: * http://www.ripe.net/whois remarks: **************************** rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2a0b:4340:d4::/48 descr: Kosaka Guangdong Province Network origin: AS49904 mnt-by: KOSAKA-MNT created: 2017-09-30T13:11:19Z last-modified: 2017-09-30T13:11:19Z source: RIPE remarks: **************************** remarks: * THIS OBJECT IS MODIFIED remarks: * Please note that all data that is generally regarded as personal remarks: * data has been removed from this object. remarks: * To view the original object, please query the RIPE Database at: remarks: * http://www.ripe.net/whois remarks: **************************** rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2a0b:4340:d6::/48 descr: Kosaka Japan Network origin: AS49904 mnt-by: KOSAKA-MNT created: 2018-02-26T04:14:57Z last-modified: 2018-02-26T04:14:57Z source: RIPE remarks: **************************** remarks: * THIS OBJECT IS MODIFIED remarks: * Please note that all data that is generally regarded as personal remarks: * data has been removed from this object. remarks: * To view the original object, please query the RIPE Database at: remarks: * http://www.ripe.net/whois remarks: **************************** rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2a0b:4340:d8::/48 origin: AS49904 descr: Proxy route remarks: Proxy route mnt-by: MAINT-AS7545 changed: core-neteng-support [at] tpg.com.au 20221020 source: RADB last-modified: 2023-11-13T16:12:46Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2a0b:4340:db::/48 descr: Kosaka Ukraine Network origin: AS49904 mnt-by: KOSAKA-MNT created: 2017-10-04T12:34:42Z last-modified: 2017-10-04T12:34:42Z source: RIPE remarks: **************************** remarks: * THIS OBJECT IS MODIFIED remarks: * Please note that all data that is generally regarded as personal remarks: * data has been removed from this object. remarks: * To view the original object, please query the RIPE Database at: remarks: * http://www.ripe.net/whois remarks: **************************** rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2a0b:4340:dc::/48 descr: Kosaka Russia Network origin: AS49904 mnt-by: KOSAKA-MNT created: 2017-09-30T13:09:47Z last-modified: 2017-09-30T13:09:47Z source: RIPE remarks: **************************** remarks: * THIS OBJECT IS MODIFIED remarks: * Please note that all data that is generally regarded as personal remarks: * data has been removed from this object. remarks: * To view the original object, please query the RIPE Database at: remarks: * http://www.ripe.net/whois remarks: **************************** rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2a0b:4340:dd::/48 descr: Kosaka Germany Network origin: AS49904 mnt-by: KOSAKA-MNT created: 2017-09-30T13:09:29Z last-modified: 2017-09-30T13:09:29Z source: RIPE remarks: **************************** remarks: * THIS OBJECT IS MODIFIED remarks: * Please note that all data that is generally regarded as personal remarks: * data has been removed from this object. remarks: * To view the original object, please query the RIPE Database at: remarks: * http://www.ripe.net/whois remarks: **************************** rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2a0b:4340:de::/48 descr: Kosaka British Network origin: AS49904 mnt-by: KOSAKA-MNT created: 2017-10-07T17:19:11Z last-modified: 2017-10-07T17:19:11Z source: RIPE remarks: **************************** remarks: * THIS OBJECT IS MODIFIED remarks: * Please note that all data that is generally regarded as personal remarks: * data has been removed from this object. remarks: * To view the original object, please query the RIPE Database at: remarks: * http://www.ripe.net/whois remarks: **************************** rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2a0b:4340:df::/48 descr: Kosaka France Network origin: AS49904 mnt-by: KOSAKA-MNT created: 2017-09-30T13:10:32Z last-modified: 2017-09-30T13:10:32Z source: RIPE remarks: **************************** remarks: * THIS OBJECT IS MODIFIED remarks: * Please note that all data that is generally regarded as personal remarks: * data has been removed from this object. remarks: * To view the original object, please query the RIPE Database at: remarks: * http://www.ripe.net/whois remarks: **************************** rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source