These entries are queried from radb.net using whois, you can try my project getting these.
:AS37586 route: 197.231.248.0/22 descr: onatel route origin: AS37586 mnt-by: SR7310-MNT created: 2013-08-29T12:45:55Z last-modified: 2018-09-04T17:43:54Z 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: 197.231.248.0/22 descr: route origin: AS37586 mnt-by: ONATEL-mnt changed: *** [at] gmail.com 20190103 source: AFRINIC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 197.231.248.0/23 descr: Onatel-Block origin: AS37586 mnt-by: SR7310-MNT created: 2013-10-11T17:41:50Z last-modified: 2018-09-04T17:45:46Z source: RIPE-NONAUTH notify: ip-noc [at] simbanet.co.tz 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: 197.231.248.0/24 descr: Onatel-Block origin: AS37586 mnt-by: SR7310-MNT created: 2013-10-11T17:40:31Z last-modified: 2018-09-04T17:45:45Z source: RIPE-NONAUTH notify: ip-noc [at] simbanet.co.tz 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: 197.231.249.0/24 descr: Onatel-Block origin: AS37586 mnt-by: SR7310-MNT created: 2013-10-11T17:43:54Z last-modified: 2018-09-04T17:45:46Z source: RIPE-NONAUTH notify: ip-noc [at] simbanet.co.tz 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: 197.231.250.0/23 descr: Onatel-Block origin: AS37586 mnt-by: SR7310-MNT created: 2013-10-11T17:53:32Z last-modified: 2018-09-04T17:45:46Z source: RIPE-NONAUTH notify: ip-noc [at] simbanet.co.tz 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: 197.231.250.0/24 descr: Onatel-Block origin: AS37586 mnt-by: SR7310-MNT created: 2013-10-11T17:52:06Z last-modified: 2018-09-04T17:45:46Z source: RIPE-NONAUTH notify: ip-noc [at] simbanet.co.tz 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: 197.231.251.0/24 descr: Onatel-Block origin: AS37586 mnt-by: SR7310-MNT created: 2013-10-11T17:54:34Z last-modified: 2018-09-04T17:45:46Z source: RIPE-NONAUTH notify: ip-noc [at] simbanet.co.tz 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: 2c0f:f198::/32 origin: AS37586 descr: ONATEL_V6 mnt-by: ONATEL-mnt changed: *** [at] onatel.bi 20201118 source: AFRINIC mnt-lower: ONATEL-mnt mnt-routes: ONATEL-mnt rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source