These entries are queried from radb.net using whois, you can try my project getting these.
:AS40289 route: 128.129.88.0/21 origin: AS40289 descr: proxy route object for customer SungardAS admin-c: UNITAS-SOC tech-c: UNITAS-SOC notify: netops [at] unitasglobal.com mnt-by: MAINT-AS1828 changed: netops [at] unitasglobal.com 20201120 #16:41:15Z source: RADB last-modified: 2023-11-13T16:03:01Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 162.70.72.0/24 descr: Proxy registration to prevent harm from ARIN-NONAUTH shutdown origin: AS40289 mnt-by: MAINT-AS7034 changed: kennethfinnegan2007 [at] gmail.com 20220404 source: ALTDB rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 192.250.1.0/24 descr: Proxy registration to prevent harm from ARIN-NONAUTH shutdown origin: AS40289 mnt-by: MAINT-AS7034 changed: kennethfinnegan2007 [at] gmail.com 20220404 source: ALTDB rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 192.250.5.0/24 descr: Proxy registration to prevent harm from ARIN-NONAUTH shutdown origin: AS40289 mnt-by: MAINT-AS7034 changed: kennethfinnegan2007 [at] gmail.com 20220404 source: ALTDB rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 205.135.144.0/23 descr: Akamai Technologies, Inc origin: AS40289 mnt-by: MAINT-AS32787 source: RADB changed: ameyer [at] akamai.com 20211025 last-modified: 2023-11-13T16:13:34Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 205.135.144.0/24 descr: Prolexic Technologies origin: AS40289 mnt-by: MAINT-AS32787 changed: mwhitema [at] akamai.com 20150629 #00:33:15Z source: RADB last-modified: 2023-11-13T16:13:33Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 205.135.145.0/24 descr: Prolexic Technologies origin: AS40289 mnt-by: MAINT-AS32787 changed: jbarral [at] akamai.com 20170201 #15:31:20Z source: RADB last-modified: 2023-11-13T16:13:33Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 205.135.251.0/24 descr: Prolexic Technologies, Inc. origin: AS40289 mnt-by: MAINT-AS32787 notify: hostmaster [at] prolexic.com changed: abenage [at] akamai.com 20210221 source: RADB last-modified: 2023-11-13T16:13:34Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 208.72.60.0/24 descr: Proxy registration to prevent harm from ARIN-NONAUTH shutdown origin: AS40289 mnt-by: MAINT-AS7034 changed: kennethfinnegan2007 [at] gmail.com 20220404 source: ALTDB rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 216.128.240.0/20 descr: CGI Group - TX origin: AS40289 notify: pdc.net.eng.south.us [at] cgi.com mnt-by: MNT-CTS-143 changed: stephen.wilcox [at] cgi.com 20191107 source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2607:f020::/40 descr: Proxy registration to prevent harm from ARIN-NONAUTH shutdown origin: AS40289 mnt-by: MAINT-AS7034 changed: kennethfinnegan2007 [at] gmail.com 20220404 source: ALTDB rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2607:f020:2000::/40 descr: Proxy registration to prevent harm from ARIN-NONAUTH shutdown origin: AS40289 mnt-by: MAINT-AS7034 changed: kennethfinnegan2007 [at] gmail.com 20220404 source: ALTDB rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source