These entries are queried from radb.net using whois, you can try my project getting these.
:AS60447 route: 77.246.208.0/23 origin: AS60447 mnt-by: ATLANTIS-GROUP-MNT mnt-by: MNT-ATLANTISBG created: 2021-04-27T09:21:10Z last-modified: 2021-04-27T09:21:10Z 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: 77.246.216.0/22 descr: BG-I-NET-20070529 origin: AS60447 mnt-by: bg-i-net-1-mnt created: 2015-03-24T12:25:57Z last-modified: 2018-08-21T15:20:23Z 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: 77.246.216.0/24 descr: BG-I-NET-216 origin: AS60447 mnt-by: bg-i-net-1-mnt created: 2014-05-21T14:00:07Z last-modified: 2018-08-21T15:21:16Z 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: 77.246.217.0/24 descr: BG-I-NET-217 origin: AS60447 mnt-by: bg-i-net-1-mnt created: 2014-05-21T14:00:46Z last-modified: 2018-08-21T15:22:03Z 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: 77.246.218.0/24 descr: BG-I-NET-218 origin: AS60447 mnt-by: bg-i-net-1-mnt created: 2014-05-21T14:01:32Z last-modified: 2018-08-21T15:22:35Z 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: 77.246.219.0/24 descr: BG-I-NET-219 origin: AS60447 mnt-by: bg-i-net-1-mnt created: 2014-05-21T14:02:10Z last-modified: 2018-08-21T15:22:59Z 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: 95.214.104.0/22 origin: AS60447 mnt-by: I-NETBG mnt-by: bg-i-net-1-mnt created: 2019-01-11T07:45:34Z last-modified: 2019-01-11T07:45:34Z 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: valid route: 95.214.104.0/23 origin: AS60447 mnt-by: bg-i-net-1-mnt created: 2018-12-24T13:06:35Z last-modified: 2018-12-24T13:06:35Z 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: 95.214.106.0/23 origin: AS60447 mnt-by: bg-i-net-1-mnt created: 2018-12-24T13:07:12Z last-modified: 2018-12-24T13:07:12Z 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: 185.81.123.0/24 origin: AS60447 mnt-by: AZ39139-MNT mnt-by: MNT-LIR-BG created: 2023-06-18T21:30:01Z last-modified: 2023-06-18T21:30:01Z 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: 185.97.72.0/22 descr: I NET BG origin: AS60447 mnt-by: I-NETBG created: 2015-10-05T10:41:58Z last-modified: 2015-10-05T10:41:58Z 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: 185.97.72.0/24 descr: INET-72 origin: AS60447 mnt-by: I-NETBG created: 2015-04-22T12:51:40Z last-modified: 2015-04-22T12:51:40Z 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: 185.97.73.0/24 descr: INET-73 origin: AS60447 mnt-by: I-NETBG created: 2015-04-22T14:59:09Z last-modified: 2015-04-22T14:59:09Z 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: 185.97.74.0/24 descr: INET-74 origin: AS60447 mnt-by: I-NETBG created: 2015-04-22T14:59:44Z last-modified: 2015-04-22T14:59:44Z 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: valid route: 185.97.75.0/24 origin: AS60447 mnt-by: bg-i-net-1-mnt mnt-by: I-NETBG created: 2017-08-30T05:10:47Z last-modified: 2017-08-30T05:10:47Z 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: valid route: 195.230.26.0/24 origin: AS60447 mnt-by: AS8431-MNT created: 2021-01-18T09:05:18Z last-modified: 2021-01-18T09:05:18Z 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: 2a06:4c0::/32 descr: I-NETBG IPv6 Address Space origin: AS60447 mnt-by: bg-i-net-1-mnt mnt-by: I-NETBG created: 2015-12-21T10:32:17Z last-modified: 2015-12-21T10:32:17Z 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: valid