These entries are queried from radb.net using whois, you can try my project getting these.
:AS8464 route: 87.237.152.0/22 descr: WMG-PUB, 87.237.152.0/22 origin: AS8464 mnt-by: WMGNET created: 2009-10-13T09:52:56Z last-modified: 2009-10-13T09:52:56Z 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: not_found # No ROAs found, or RPKI validation not enabled for source route: 87.237.156.0/23 descr: WMG-PUB, 87.237.156.0/23 origin: AS8464 mnt-by: WMGNET created: 2009-10-13T09:57:24Z last-modified: 2009-10-13T09:57:24Z 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: 185.45.128.0/23 descr: WMG, 185.45.128.0/23 origin: AS8464 mnt-by: WMGNET created: 2014-12-10T07:24:03Z last-modified: 2014-12-10T07:24:03Z 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: 2a03:8580::/32 descr: WMG-PUB IPv6, 2a03:8580::/32 origin: AS8464 mnt-by: WMGNET created: 2012-10-17T09:16:29Z last-modified: 2012-10-17T09:16:29Z 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