These entries are queried from radb.net using whois, you can try my project getting these.
:AS16591 route: 23.228.128.0/18 descr: Google origin: AS16591 notify: radb-contact [at] google.com mnt-by: MAINT-AS16591 changed: radb-contact [at] google.com 20150615 source: RADB last-modified: 2023-11-13T15:47:48Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 23.255.128.0/17 descr: Google origin: AS16591 notify: radb-contact [at] google.com mnt-by: MAINT-AS16591 changed: radb-contact [at] google.com 20150615 source: RADB last-modified: 2023-11-13T15:47:48Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 45.56.0.0/18 descr: Google origin: AS16591 notify: radb-contact [at] google.com mnt-by: MAINT-AS16591 changed: radb-contact [at] google.com 20150615 source: RADB last-modified: 2023-11-13T15:47:48Z rpki-ov-state: valid route: 99.198.128.0/17 descr: Google origin: AS16591 notify: radb-contact [at] google.com mnt-by: MAINT-AS16591 changed: radb-contact [at] google.com 20150615 source: RADB last-modified: 2023-11-13T15:47:48Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 107.188.128.0/17 descr: Google origin: AS16591 notify: radb-contact [at] google.com mnt-by: MAINT-AS16591 changed: radb-contact [at] google.com 20150615 source: RADB last-modified: 2023-11-13T15:47:48Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 136.32.0.0/11 descr: Google origin: AS16591 notify: radb-contact [at] google.com mnt-by: MAINT-AS16591 changed: radb-contact [at] google.com 20151006 source: RADB last-modified: 2023-11-13T15:48:09Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 192.119.16.0/20 descr: Google origin: AS16591 notify: radb-contact [at] google.com mnt-by: MAINT-AS16591 changed: radb-contact [at] google.com 20150615 source: RADB last-modified: 2023-11-13T15:47:48Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 192.200.224.0/19 descr: Google origin: AS16591 notify: radb-contact [at] google.com mnt-by: MAINT-AS16591 changed: radb-contact [at] google.com 20150615 source: RADB last-modified: 2023-11-13T15:47:48Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 216.21.160.0/20 descr: Google origin: AS16591 notify: radb-contact [at] google.com mnt-by: MAINT-AS16591 changed: radb-contact [at] google.com 20150615 source: RADB last-modified: 2023-11-13T15:47:48Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2605:a600::/31 origin: AS16591 descr: Google Fiber notify: radb-contact [at] google.com mnt-by: MAINT-AS16591 changed: louiel [at] google.com 20190430 #16:55:50Z source: RADB last-modified: 2023-11-13T15:56:06Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2605:a601::/32 descr: Google origin: AS16591 notify: radb-contact [at] google.com mnt-by: MAINT-AS16591 changed: radb-contact [at] google.com 20150615 source: RADB last-modified: 2023-11-13T15:47:48Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source