These entries are queried from radb.net using whois, you can try my project getting these.
:AS14864 route: 146.121.22.0/24 descr: Akamai Technologies, Inc origin: AS14864 mnt-by: MAINT-AS32787 source: RADB changed: ameyer [at] akamai.com 20211220 last-modified: 2023-11-13T16:13:35Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 146.121.24.0/24 descr: Akamai Technologies, Inc origin: AS14864 mnt-by: MAINT-AS32787 source: RADB changed: ameyer [at] akamai.com 20211220 last-modified: 2023-11-13T16:13:35Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 146.121.25.0/24 descr: Akamai Technologies, Inc origin: AS14864 mnt-by: MAINT-AS32787 source: RADB changed: ameyer [at] akamai.com 20211220 last-modified: 2023-11-13T16:13:35Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 146.121.26.0/24 descr: Akamai Technologies, Inc origin: AS14864 mnt-by: MAINT-AS32787 source: RADB changed: ameyer [at] akamai.com 20211220 last-modified: 2023-11-13T16:13:35Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 155.181.0.0/16 descr: RBS Securities, Inc. origin: AS14864 mnt-by: MAINT-AS27506 changed: robert.hinst [at] crowncastle.com 20190227 source: RADB last-modified: 2023-11-13T15:55:42Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source