These entries are queried from radb.net using whois, you can try my project getting these.
:AS42911 route: 91.193.228.0/22 descr: INTERNET SERVICE PI BLOCK notify: techno [at] woskresensk.ru origin: AS42911 mnt-by: MNT-INTERNETSERVICE created: 2007-06-01T06:59:51Z last-modified: 2010-03-03T09:45:38Z 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: 91.193.231.0/24 descr: INTERNET SERVICE PI BLOCK notify: techno [at] woskresensk.ru origin: AS42911 mnt-by: MNT-INTERNETSERVICE created: 2010-03-03T10:21:46Z last-modified: 2010-03-03T10:22:39Z 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