These entries are queried from radb.net using whois, you can try my project getting these.
:AS33847 route: 91.212.53.0/24 descr: DU via EMIX origin: AS33847 notify: noc [at] emix.net.ae mnt-by: MAINT-AS8966 changed: noc [at] emix.net.ae 20120220 source: RADB last-modified: 2023-11-13T15:42:04Z rpki-ov-state: valid route: 91.212.53.0/24 descr: CMI IP Transit origin: AS33847 mnt-by: MAINT-CMI-INT-HK changed: qas_support [at] cmi.chinamobile.com 20200810 source: NTTCOM rpki-ov-state: valid route: 91.212.53.0/24 descr: The Petroleum Institute origin: AS33847 mnt-by: MNT-ANKABUT-UAE created: 2012-02-20T11:14:23Z last-modified: 2012-02-20T11:14:23Z 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