These entries are queried from radb.net using whois, you can try my project getting these.
:AS57141 route: 149.154.80.0/21 descr: route telwan origin: AS57141 mnt-by: TELWAN-MNT created: 2012-12-05T14:02:37Z last-modified: 2016-04-21T15:59:36Z 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: 185.131.192.0/22 origin: AS57141 descr: TELWAN mnt-by: TELWAN-MNT created: 2016-04-21T11:53:28Z last-modified: 2016-04-21T11:53:28Z 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 route6: 2a07:3800::/29 origin: AS57141 mnt-by: TELWAN-MNT created: 2016-04-21T12:20:34Z last-modified: 2016-04-21T12:20:34Z 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: not_found # No ROAs found, or RPKI validation not enabled for source