These entries are queried from radb.net using whois, you can try my project getting these.
:AS43281 route: 37.77.168.0/21 descr: Stepanovic-Sipka-NET origin: AS43281 mnt-by: MNT-DMUDRIC created: 2012-02-04T13:08:48Z last-modified: 2012-02-04T13:08:48Z 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: 37.77.168.0/21 descr: Mozzart doo origin: AS43281 mnt-by: MAINT-AS40676 changed: manish.patil [at] psychz.net 20190709 #10:47:18Z source: RADB last-modified: 2023-11-13T15:56:44Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 37.77.168.0/24 descr: Stepanovic-NET-168 origin: AS43281 mnt-by: MNT-DMUDRIC created: 2014-03-13T16:01:28Z last-modified: 2014-03-13T16:01:28Z 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: valid route: 37.77.169.0/24 descr: Stepanovic-NET-169 origin: AS43281 mnt-by: MNT-DMUDRIC created: 2014-03-13T16:02:15Z last-modified: 2014-03-13T16:02:15Z 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: valid route: 37.77.170.0/24 descr: Stepanovic-NET-170 origin: AS43281 mnt-by: MNT-DMUDRIC created: 2014-03-13T16:02:53Z last-modified: 2014-03-13T16:02:53Z 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: 37.77.171.0/24 descr: Stepanovic-NET-171 origin: AS43281 mnt-by: MNT-DMUDRIC created: 2014-03-13T16:03:40Z last-modified: 2014-03-13T16:03:40Z 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: 37.77.172.0/24 origin: AS43281 mnt-by: MNT-CNOVAKOVIC created: 2019-07-15T18:23:32Z last-modified: 2019-07-15T18:23:32Z 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: valid route: 77.247.200.0/21 descr: Mozzart doo origin: AS43281 mnt-by: MAINT-AS40676 changed: manish.patil [at] psychz.net 20190709 #10:42:59Z source: RADB last-modified: 2023-11-13T15:56:44Z rpki-ov-state: valid route: 77.247.200.0/22 descr: TelebetNet origin: AS43281 mnt-by: MNT-CNOVAKOVIC created: 2011-06-02T22:47:48Z last-modified: 2022-01-14T11:52:56Z 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: 77.247.204.0/23 descr: Telebet2 origin: AS43281 mnt-by: MNT-DMUDRIC created: 2011-06-02T22:51:43Z last-modified: 2011-06-02T22:51:43Z 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: valid route: 77.247.206.0/24 descr: Telebet3 origin: AS43281 mnt-by: MNT-DMUDRIC created: 2011-06-02T22:52:57Z last-modified: 2011-06-02T22:52:57Z 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: 77.247.207.0/24 descr: Telebet4 origin: AS43281 mnt-by: MNT-DMUDRIC created: 2011-06-02T22:54:31Z last-modified: 2011-06-02T22:54:31Z 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 route6: 2a03:9d80::/32 descr: RS-STEPANOVICISIPKA-V6 origin: AS43281 mnt-by: MNT-DMUDRIC created: 2011-10-20T11:20:02Z last-modified: 2011-10-20T11:20:02Z 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