These entries are queried from radb.net using whois, you can try my project getting these.
:AS47673 route: 31.148.28.0/23 origin: AS47673 mnt-by: MNT-BERSHNET mnt-by: RIPE-DB-MNT created: 2014-12-29T12:24:10Z last-modified: 2022-08-17T11:42:07Z 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: valid