These entries are queried from radb.net using whois, you can try my project getting these.
:AS50743 route: 91.205.248.0/22 descr: Commensus PLC origin: AS50743 mnt-by: COLT-UK mnt-by: commensus-mnt created: 2013-12-10T09:40:27Z last-modified: 2021-06-25T14:37:19Z 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: 91.205.248.0/24 origin: AS50743 descr: Akamai Technologies, Inc. mnt-by: MAINT-AS32787 changed: cromero [at] akamai.com 20220831 #01:57:47Z source: RADB last-modified: 2023-11-13T16:13:35Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 91.205.248.0/24 descr: Commensus PLC origin: AS50743 mnt-by: COLT-UK created: 2010-03-26T11:40:10Z last-modified: 2010-03-26T11:40:10Z 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: 91.205.250.0/24 descr: Commensus PLC origin: AS50743 mnt-by: COLT-UK created: 2010-03-26T11:40:11Z last-modified: 2010-03-26T11:40:11Z 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: 91.205.251.0/24 descr: Commensus PLC origin: AS50743 mnt-by: COLT-UK created: 2010-03-26T11:40:11Z last-modified: 2010-03-26T11:40:11Z 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