These entries are queried from radb.net using whois, you can try my project getting these.
:AS34457 route: 171.24.0.0/16 descr: AMB Generali Informatik Service origin: AS34457 mnt-by: TSI-MNT mnt-routes: DTAG-RR mnt-routes: TSI-MNT created: 2005-05-09T11:42:03Z last-modified: 2005-05-23T16:20:52Z 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: 171.24.0.0/16 descr: Akamai Technologies, Inc origin: AS34457 mnt-by: MAINT-AS32787 changed: ameyer [at] akamai.com 20200906 #21:36:50Z 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: 171.24.0.0/17 descr: AMB Generali Informatik Service origin: AS34457 mnt-by: TSI-MNT mnt-by: GDIS-MNT created: 2005-05-23T16:22:41Z last-modified: 2013-10-09T05:05:55Z 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: 171.24.128.0/17 descr: AMB Generali Informatik Service origin: AS34457 mnt-by: TSI-MNT mnt-by: GDIS-MNT created: 2005-05-23T16:23:57Z last-modified: 2013-10-09T05:05:55Z 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: 171.24.132.0/22 descr: Generali Deutschland Informatik Services GmbH origin: AS34457 mnt-by: GDIS-MNT created: 2013-10-09T06:16:15Z last-modified: 2013-10-09T06:16:15Z 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: 171.24.226.0/24 descr: AMB Generali Informatik Service origin: AS34457 mnt-by: TSI-MNT created: 2005-06-06T17:04:11Z last-modified: 2005-06-06T17:04:11Z 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 route6: 2a03:2d80::/32 descr: Generali Deutschland Informatik Services GmbH origin: AS34457 mnt-by: GDIS-MNT created: 2013-11-07T07:27:25Z last-modified: 2013-11-07T07:27:25Z 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