These entries are queried from radb.net using whois, you can try my project getting these.
:AS56497 route: 91.149.172.0/24 descr: DELEGATED origin: AS56497 mnt-by: BYGIS-MNT created: 2014-03-21T09:06:44Z last-modified: 2014-03-21T09:06:44Z 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: 91.149.175.0/24 descr: DELEGATED origin: AS56497 mnt-by: BYGIS-MNT created: 2012-03-30T08:28:33Z last-modified: 2012-03-30T08:28:33Z 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: 93.125.58.0/24 origin: AS56497 mnt-by: BYGIS-MNT created: 2018-09-10T14:58:15Z last-modified: 2018-09-10T14:58:15Z 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: 93.125.93.0/24 descr: DELEGATED origin: AS56497 mnt-by: BYGIS-MNT created: 2012-03-30T08:30:36Z last-modified: 2012-03-30T08:30:36Z 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: 93.125.94.0/24 descr: DELEGATED origin: AS56497 mnt-by: BYGIS-MNT created: 2012-03-30T08:30:37Z last-modified: 2012-03-30T08:30:37Z 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: 93.125.95.0/24 descr: DELEGATED origin: AS56497 mnt-by: BYGIS-MNT created: 2012-03-30T08:30:37Z last-modified: 2012-03-30T08:30:37Z 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: 178.172.221.0/24 descr: DELEGATED TO Newtech gomel origin: AS56497 mnt-by: BYGIS-MNT created: 2012-03-19T20:37:22Z last-modified: 2012-03-19T20:37:22Z 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: 213.184.237.64/27 descr: DELEGATED origin: AS56497 mnt-by: BYGIS-MNT created: 2014-03-11T16:47:28Z last-modified: 2014-03-11T16:47:28Z 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