These entries are queried from radb.net using whois, you can try my project getting these.
:AS41352 route: 91.222.20.0/22 descr: D. A. Tsenov Academy of Economics Svishtov origin: AS41352 mnt-by: UNI-SVISHTOV-MNT created: 2010-11-30T14:04:47Z last-modified: 2011-09-08T10:26:38Z 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: 195.20.24.0/22 descr: Uni-Svishtov origin: AS41352 mnt-by: UNI-SVISHTOV-MNT created: 2006-07-28T13:43:53Z last-modified: 2011-09-15T09:14:16Z 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: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2001:67c:23fc::/48 descr: D. A. Tsenov Svishtov Academy of Economic - ipv6 net origin: AS41352 mnt-by: UNI-SVISHTOV-MNT created: 2011-09-17T06:30:05Z last-modified: 2011-09-17T06:30:05Z 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