These entries are queried from radb.net using whois, you can try my project getting these.
:AS14781 route: 68.142.252.0/22 descr: YSM NorthWest origin: AS14781 remarks: Seattle, WA notify: network [at] yahoo-inc.com mnt-by: MAINT-AS7280 changed: mpetach [at] yahoo-inc.com 20051116 source: RADB last-modified: 2023-11-13T15:39:36Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 68.180.136.0/22 descr: DIB datacenter origin: AS14781 remarks: DIB Sunnyvale notify: network [at] yahoo-inc.com mnt-by: MAINT-YAHOO changed: ttom [at] yahoo-inc.com 20071108 source: RADB last-modified: 2023-11-13T15:39:53Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 189.125.135.0/24 descr: Yahoo Corp-SAO block origin: AS14781 notify: netops [at] yahoo-inc.com mnt-by: MAINT-YAHOO changed: joeh [at] yahoo-inc.com 20131210 source: RADB last-modified: 2023-11-13T15:45:55Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 209.67.68.128/25 descr: Overture SW1 space origin: AS14781 remarks: For YSM deployment in Seattle notify: network [at] yahoo-inc.com mnt-by: MAINT-YAHOO changed: mpetach [at] yahoo-inc.com 20050628 source: RADB last-modified: 2023-11-13T15:39:36Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 216.34.77.0/25 descr: Yahoo! Overture NorthWest origin: AS14781 remarks: notify: network [at] yahoo-inc.com mnt-by: MAINT-AS7280 changed: igor [at] yahoo-inc.com 20050201 source: RADB last-modified: 2023-11-13T15:39:36Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2804:1bc:efd4::/48 descr: Yahoo Corp-SAO origin: AS14781 notify: network [at] yahooinc.com mnt-by: MAINT-YAHOO changed: jasonroh [at] yahooinc.com 20220124 source: RADB last-modified: 2023-11-13T16:09:08Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source