These entries are queried from radb.net using whois, you can try my project getting these.
:AS43428 route: 77.238.186.0/23 descr: Yahoo-EU-NET origin: AS43428 mnt-by: YAHOO-MNT created: 2007-07-31T17:14:20Z last-modified: 2007-07-31T17:14:20Z source: RIPE remarks: **************************** remarks: * THIS OBJECT IS MODIFIED remarks: * Please note that all data that is generally regarded as personal remarks: * data has been removed from this object. remarks: * To view the original object, please query the RIPE Database at: remarks: * http://www.ripe.net/whois remarks: **************************** rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 87.248.112.0/24 descr: Yahoo Edge LOB origin: AS43428 remarks: notify: network [at] yahoo-inc.com mnt-by: MAINT-YAHOO changed: cschiu [at] yahoo-inc.com 20150911 source: RADB last-modified: 2023-11-13T15:48:08Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 87.248.114.0/23 descr: Yahoo Edge LOB origin: AS43428 remarks: notify: network [at] yahoo-inc.com mnt-by: MAINT-YAHOO changed: cschiu [at] yahoo-inc.com 20150911 source: RADB last-modified: 2023-11-13T15:48:08Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 87.248.114.0/24 origin: AS43428 descr: Verizon Media LOB 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: 87.248.115.0/24 origin: AS43428 descr: Verizon Media LOB 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: 188.125.93.0/24 descr: Yahoo-EU-NET origin: AS43428 mnt-by: YAHOO-MNT created: 2010-09-30T14:56:35Z last-modified: 2010-09-30T14:56:35Z source: RIPE remarks: **************************** remarks: * THIS OBJECT IS MODIFIED remarks: * Please note that all data that is generally regarded as personal remarks: * data has been removed from this object. remarks: * To view the original object, please query the RIPE Database at: remarks: * http://www.ripe.net/whois remarks: **************************** rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2a00:1288:7c::/48 descr: Yahoo LOB origin: AS43428 notify: network [at] yahoo-inc.com mnt-by: MAINT-YAHOO changed: nevin [at] yahoo-inc.com 20150428 source: RADB last-modified: 2023-11-13T15:49:47Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source