These entries are queried from radb.net using whois, you can try my project getting these.
:AS51762 route: 46.18.112.0/22 descr: Hosting Centre origin: AS51762 mnt-by: ADVSR-MNT created: 2010-11-06T08:05:54Z last-modified: 2010-11-06T08:05:54Z 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: 46.18.112.0/24 descr: Hosting Centre UKLN01 origin: AS51762 mnt-by: ADVSR-MNT created: 2010-11-06T08:00:12Z last-modified: 2010-11-06T08:00:12Z 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: not_found # No ROAs found, or RPKI validation not enabled for source route: 46.18.113.0/24 descr: Hosting Centre DEFF01 origin: AS51762 mnt-by: ADVSR-MNT created: 2010-11-06T08:02:17Z last-modified: 2010-11-06T08:02:17Z 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: not_found # No ROAs found, or RPKI validation not enabled for source route: 46.18.114.0/24 descr: Hosting Centre HKHK01 origin: AS51762 mnt-by: ADVSR-MNT created: 2010-11-06T08:03:30Z last-modified: 2010-11-06T08:03:30Z 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: 46.18.115.0/24 descr: Hosting Centre USNY01 origin: AS51762 mnt-by: ADVSR-MNT created: 2010-11-06T08:04:39Z last-modified: 2010-11-06T08:04:39Z 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: 46.18.116.0/24 descr: Hosting Centre 5 origin: AS51762 mnt-by: ADVSR-MNT created: 2011-07-08T04:56:19Z last-modified: 2011-07-08T04:56:19Z 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: 46.18.117.0/24 descr: Hosting Centre 6 origin: AS51762 mnt-by: ADVSR-MNT created: 2011-07-08T05:00:04Z last-modified: 2011-07-08T05:00:04Z 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: 46.18.118.0/24 descr: Hosting Centre Global origin: AS51762 mnt-by: ADVSR-MNT created: 2011-07-08T05:00:46Z last-modified: 2011-07-08T05:00:46Z 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: 2a03:54c0::/32 descr: IPv6-RedSpam Prefix origin: AS51762 mnt-by: ADVSR-MNT mnt-lower: ADVSR-MNT mnt-routes: ADVSR-MNT created: 2014-12-01T13:20:52Z last-modified: 2014-12-01T13:20:52Z 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: 2a03:54c0:1e51::/48 descr: IPv6-Test-Subnet origin: AS51762 mnt-by: ADVSR-MNT created: 2014-12-01T12:27:58Z last-modified: 2014-12-01T12:27:58Z 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: not_found # No ROAs found, or RPKI validation not enabled for source