These entries are queried from radb.net using whois, you can try my project getting these.
:AS203219 route: 87.248.113.0/24 descr: Yahoo AMB origin: AS203219 remarks: notify: network [at] yahoo-inc.com mnt-by: MAINT-YAHOO changed: cschiu [at] yahoo-inc.com 20160310 source: RADB last-modified: 2023-11-13T15:48:46Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 87.248.116.0/23 descr: Yahoo AMB origin: AS203219 remarks: notify: network [at] yahoo-inc.com mnt-by: MAINT-YAHOO changed: cschiu [at] yahoo-inc.com 20160310 source: RADB last-modified: 2023-11-13T15:48:46Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 87.248.116.0/24 origin: AS203219 descr: Verizon Media AMB notify: network [at] yahoo-inc.com mnt-by: MAINT-YAHOO changed: kwtso [at] verizonmedia.com 20201221 source: RADB last-modified: 2023-11-13T16:03:09Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 87.248.117.0/24 origin: AS203219 descr: Verizon Media AMB notify: network [at] yahoo-inc.com mnt-by: MAINT-YAHOO changed: kwtso [at] verizonmedia.com 20201221 source: RADB last-modified: 2023-11-13T16:03:09Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2a00:1288:84::/48 descr: Yahoo AMB origin: AS203219 remarks: notify: network [at] yahoo-inc.com mnt-by: MAINT-YAHOO changed: cschiu [at] yahoo-inc.com 20160310 source: RADB last-modified: 2023-11-13T15:48:46Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source