These entries are queried from radb.net using whois, you can try my project getting these.
:AS212148 route: 91.212.156.0/24 descr: Prefix originated by ITecon GmbH origin: AS212148 mnt-by: ITECON-MNT created: 2021-06-10T07:38:17Z last-modified: 2021-06-10T07:49:38Z 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: valid route: 149.7.19.0/24 origin: AS212148 descr: Route Registered for Cogent Communications Customer ITecon GmbH mnt-by: MAINT-AS174 changed: neteng [at] cogentco.com 20210121 #15:00:20Z source: RADB last-modified: 2023-11-13T16:03:24Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 149.13.71.0/24 origin: AS212148 descr: Route Registered for Cogent Communications Customer - ITecon GmbH geoidx: DE mnt-by: MAINT-AS174 changed: neteng [at] cogentco.com 20211229 #11:32:14Z source: RADB last-modified: 2023-11-13T16:09:05Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 154.47.0.0/24 origin: AS212148 descr: Route Registered for Cogent Communications Customer - ITecon GmbH geoidx: DE mnt-by: MAINT-AS174 changed: neteng [at] cogentco.com 20220224 source: RADB last-modified: 2023-11-13T16:09:24Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 154.47.1.0/24 origin: AS212148 descr: Route Registered for Cogent Communications Customer - ITecon GmbH geoidx: DE mnt-by: MAINT-AS174 changed: neteng [at] cogentco.com 20220224 source: RADB last-modified: 2023-11-13T16:09:24Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2a07:b280::/29 descr: ITecon IPv6 origin: AS212148 mnt-by: ITECON-MNT created: 2022-09-23T05:53:36Z last-modified: 2022-09-23T05:53:36Z 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 route6: 2a07:b280:100::/40 descr: ITecon IPv6 MZ origin: AS212148 mnt-by: ITECON-MNT created: 2022-09-07T09:16:54Z last-modified: 2022-09-07T09:16:54Z 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 route6: 2a07:b280:200::/40 descr: ITecon IPv6 FFM TH origin: AS212148 mnt-by: ITECON-MNT mnt-by: ITECON-MNT created: 2021-12-31T12:51:30Z last-modified: 2021-12-31T12:51:30Z 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