These entries are queried from radb.net using whois, you can try my project getting these.
:AS50763 route: 37.1.88.0/21 descr: MCKAYCOM Ltd PA origin: AS50763 mnt-by: MAINT-AS50763 changed: robert [at] mckay.com 20220405 source: ALTDB rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 37.1.88.0/21 descr: MCKAYCOM Ltd PA origin: AS50763 mnt-by: MNT-MCKAYCOM created: 2011-12-09T16:09:34Z last-modified: 2011-12-09T16:09:34Z 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 route: 37.1.94.0/24 descr: Lab network origin: AS50763 mnt-by: MNT-MCKAYCOM created: 2013-04-16T23:34:43Z last-modified: 2013-04-16T23:34:43Z 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 route: 185.128.248.0/22 descr: MCKAYCOM Ltd PA origin: AS50763 mnt-by: MNT-MCKAYCOM created: 2015-11-27T15:44:55Z last-modified: 2015-11-27T15:44:55Z 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 route: 185.128.248.0/22 descr: MCKAYCOM Ltd PA origin: AS50763 mnt-by: MAINT-AS50763 changed: robert [at] mckay.com 20220405 source: ALTDB rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 185.128.248.0/22 descr: Vultr Customer Route origin: AS50763 notify: network [at] choopa.com mnt-by: MAINT-AS20473 changed: network [at] choopa.com 20221202 #00:35:53-18000 source: RADB last-modified: 2023-11-13T16:13:11Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 185.128.249.0/24 descr: MCKAYCOM Ltd PA origin: AS50763 mnt-by: MNT-MCKAYCOM created: 2016-02-26T01:50:34Z last-modified: 2016-02-26T01:50:34Z 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 route: 185.241.44.0/22 origin: AS50763 mnt-by: MNT-MCKAYCOM created: 2018-08-29T15:16:37Z last-modified: 2018-08-29T15:16:37Z 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: valid route: 185.241.44.0/23 origin: AS50763 mnt-by: MNT-MCKAYCOM created: 2021-11-13T01:13:03Z last-modified: 2021-11-13T01:13:03Z 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: valid route: 185.241.44.0/23 descr: SPICEFLOW-LDN origin: AS50763 mnt-by: MAINT-AS50763 changed: robert [at] mckay.com 20220405 source: ALTDB rpki-ov-state: valid route: 192.75.207.0/24 descr: HALIFAX-NS-CA origin: AS50763 mnt-by: MAINT-AS50763 changed: robert [at] mckay.com 20220405 source: ALTDB rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 192.75.207.0/24 descr: Halifax origin: AS50763 member-of: RS-MCKAY mnt-by: MNT-MCKAYCOM created: 2010-03-26T03:55:05Z last-modified: 2018-09-04T16:11:57Z 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 route: 192.75.207.0/24 descr: Proxy routed generated on behalf of a Bell Aliant Customer. For more information or technical issues please contact the INOC at inoc [at] bellaliant.ca origin: AS50763 mnt-by: MAINT-AS855 changed: inoc [at] aliant.ca 20111212 #19:07:51Z source: RADB last-modified: 2023-11-13T15:41:55Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 193.107.204.0/22 descr: Proxy routed generated on behalf of a Bell Aliant Customer. For more information or technical issues please contact the INOC at inoc [at] bellaliant.ca origin: AS50763 mnt-by: MAINT-AS855 changed: inoc [at] aliant.ca 20111212 #19:09:08Z source: RADB last-modified: 2023-11-13T15:41:55Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 193.107.204.0/22 descr: London origin: AS50763 mnt-by: MNT-MCKAYCOM created: 2010-03-26T03:56:17Z last-modified: 2010-03-26T03:56:17Z 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 route: 193.107.204.0/22 descr: MCKAYCOM Ltd (London) origin: AS50763 mnt-by: MAINT-AS50763 changed: robert [at] mckay.com 20220405 source: ALTDB rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 193.107.207.0/24 descr: Proxy routed generated on behalf of a Bell Aliant Customer. For more information or technical issues please contact the INOC at inoc [at] bellaliant.ca origin: AS50763 mnt-by: MAINT-AS855 changed: inoc [at] aliant.ca 20111212 #15:48:27Z source: RADB last-modified: 2023-11-13T15:41:55Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2001:470:5f::/48 origin: AS50763 descr: NET-2001-470-5f---48-AS50763 admin-c: ZH17-ARIN tech-c: ZH17-ARIN mnt-by: MNT-HURC source: ARIN created: 2022-01-20T20:20:36Z last-modified: 2022-01-20T20:20:36Z rpki-ov-state: valid route6: 2001:470:60::/48 descr: HELIACAL (annex) origin: AS50763 mnt-by: MAINT-AS50763 changed: robert [at] mckay.com 20220405 source: ALTDB rpki-ov-state: valid route6: 2001:470:60::/48 origin: AS50763 descr: NET-2001-470-60---48-AS50763 admin-c: ZH17-ARIN tech-c: ZH17-ARIN mnt-by: MNT-HURC source: ARIN created: 2022-01-20T20:20:36Z last-modified: 2022-01-20T20:20:36Z rpki-ov-state: valid route6: 2001:470:60::/48 descr: Vultr Customer Route origin: AS50763 notify: network [at] choopa.com mnt-by: MAINT-AS20473 changed: network [at] choopa.com 20200611 #00:37:12Z source: RADB last-modified: 2023-11-13T16:00:58Z rpki-ov-state: valid route6: 2001:470:60::/48 descr: MCKAYCOM Ltd - London origin: AS50763 mnt-by: MNT-MCKAYCOM created: 2011-09-05T23:21:20Z last-modified: 2018-09-04T19:41:25Z 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: valid route6: 2a00:5540::/32 descr: MCKAYCOM Ltd origin: AS50763 mnt-by: MAINT-AS50763 changed: robert [at] mckay.com 20220405 source: ALTDB rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2a00:5540::/32 descr: MCKAYCOM Ltd origin: AS50763 mnt-by: MNT-MCKAYCOM created: 2011-12-07T17:10:05Z last-modified: 2011-12-07T17:10:05Z 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: 2a00:5540:386::/48 descr: MCKAYCOM Ltd LU specific origin: AS50763 mnt-by: MNT-MCKAYCOM created: 2015-12-09T08:25:32Z last-modified: 2015-12-09T08:25:32Z 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 route6: 2a00:5541::/32 descr: Vultr Customer Route origin: AS50763 notify: network [at] choopa.com mnt-by: MAINT-AS20473 changed: network [at] choopa.com 20230920 #16:37:41-14400 source: RADB last-modified: 2023-11-13T16:18:37Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2a0c:9880::/29 descr: SPICE FLOW Ltd origin: AS50763 mnt-by: MAINT-AS50763 changed: robert [at] mckay.com 20220405 source: ALTDB rpki-ov-state: valid route6: 2a0c:9880::/29 origin: AS50763 mnt-by: MNT-MCKAYCOM created: 2018-08-29T15:17:21Z last-modified: 2018-08-29T15:17:21Z 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: valid