These entries are queried from radb.net using whois, you can try my project getting these.
:AS393560 route: 72.52.0.0/24 descr: Akamai Technologies origin: AS393560 mnt-by: MNT-AKAMAI notify: ip-admin [at] akamai.com changed: ip-admin [at] akamai.com 20200522 source: ARIN rpki-ov-state: valid route: 72.52.62.0/24 origin: AS393560 descr: Akamai Technologies, Inc mnt-by: MAINT-AS32787 changed: ameyer [at] akamai.com 20221029 #19:12:37Z source: RADB last-modified: 2023-11-13T16:13:34Z rpki-ov-state: valid route: 72.52.62.0/24 descr: Akamai Technologies origin: AS393560 mnt-by: MNT-AKAMAI source: ARIN changed: ip-admin [at] akamai.com 20200207 rpki-ov-state: valid route: 168.143.254.0/23 origin: AS393560 descr: Akamai Technologies, INC. mnt-by: MAINT-NTTCOM-BB changed: kpack [at] gin.ntt.net 20210616 source: NTTCOM last-modified: 2021-06-16T16:06:45Z rpki-ov-state: valid route: 168.143.254.0/23 origin: AS393560 descr: Akamai Technologies, INC. mnt-by: MAINT-AS32787 changed: vnangine [at] akamai.com 20210616 #09:51:37Z source: RADB last-modified: 2023-11-13T16:13:34Z rpki-ov-state: valid route: 168.143.254.0/24 descr: Test route origin: AS393560 mnt-by: MAINT-AS32787 changed: amajer [at] akamai.com 20180619 #14:24:34Z source: RADB last-modified: 2023-11-13T16:13:33Z rpki-ov-state: valid route: 168.143.255.0/24 descr: Prolexic Technologies, Inc origin: AS393560 mnt-by: MAINT-AS32787 changed: pbristow [at] akamai.com 20140821 #07:41:04Z source: RADB last-modified: 2023-11-13T16:13:33Z rpki-ov-state: valid route6: 2600:1403:13::/48 descr: SecBUBWC origin: AS393560 mnt-by: MAINT-AS32787 changed: pbristow [at] akamai.com 20140911 #13:28:43Z source: RADB last-modified: 2023-11-13T16:13:33Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2606:6c00:fe::/47 origin: AS393560 descr: Akamai Technologies admin-c: IPADM11-ARIN tech-c: IPADM11-ARIN tech-c: SJS98-ARIN mnt-by: MNT-AKAMAI created: 2022-05-31T11:38:05Z last-modified: 2022-05-31T11:38:05Z source: ARIN rpki-ov-state: valid route6: 2606:6c00:fe::/48 origin: AS393560 descr: Akamai Technologies admin-c: IPADM11-ARIN tech-c: IPADM11-ARIN tech-c: SJS98-ARIN mnt-by: MNT-AKAMAI created: 2022-05-31T11:15:02Z last-modified: 2022-05-31T11:15:02Z source: ARIN rpki-ov-state: valid route6: 2606:6c00:ff::/48 descr: Akamai Technologies origin: AS393560 mnt-by: MNT-AKAMAI source: ARIN changed: ip-admin [at] akamai.com 20200514 rpki-ov-state: valid route6: 2606:6c00:2000::/48 descr: Akamai. Quincy origin: AS393560 mnt-by: MAINT-AS32787 changed: roger [at] mainestate.edu 20190206 source: RADB last-modified: 2023-11-13T16:13:34Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2606:6c00:6000::/48 descr: Akamai. Quincy origin: AS393560 mnt-by: MAINT-AS32787 changed: erodrigu [at] akamai.com 20190206 source: RADB last-modified: 2023-11-13T16:13:34Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source