These entries are queried from radb.net using whois, you can try my project getting these.
:AS49787 route: 91.90.112.0/21 descr: STRONG-PC origin: AS49787 mnt-by: STRONG-PC-MNT mnt-lower: STRONG-PC-MNT created: 2009-09-11T13:32:16Z last-modified: 2015-11-23T18:23:14Z 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: 156.67.96.0/22 descr: PL-STRONG-PC-20220829 origin: AS49787 mnt-by: NETRONIK-MNT created: 2022-08-29T11:08:08Z last-modified: 2022-08-29T11:08:08Z 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: 193.34.193.0/25 descr: STRONG-PC origin: AS49787 mnt-by: STRONG-PC-MNT mnt-lower: STRONG-PC-MNT created: 2009-09-11T13:32:16Z last-modified: 2015-11-23T18:21:11Z 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 route: 195.60.92.128/26 descr: STRONG-PC origin: AS49787 mnt-by: STRONG-PC-MNT mnt-lower: STRONG-PC-MNT created: 2009-09-11T13:32:16Z last-modified: 2015-11-23T18:22:37Z 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: not_found # No ROAs found, or RPKI validation not enabled for source route: 195.242.134.0/23 descr: STRONG-PC origin: AS49787 mnt-by: STRONG-PC-MNT mnt-lower: STRONG-PC-MNT created: 2009-09-11T10:33:55Z last-modified: 2015-11-23T18:21:55Z 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 route6: 2001:67c:2ee8::/48 descr: STRONG-PC origin: AS49787 mnt-by: STRONG-PC-MNT created: 2015-10-28T14:36:06Z last-modified: 2015-10-28T14:36:06Z 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: 2a10:f781:10:33d6::/64 origin: AS49787 descr: EPIX-LORA-STRONGPC mnt-by: EPOLUDNIE-MNT mnt-by: EPOLUDNIE-MP-MNT mnt-lower: EPOLUDNIE-MNT mnt-lower: EPOLUDNIE-MP-MNT created: 2022-05-16T06:44:06Z last-modified: 2022-05-16T06:44:06Z 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