These entries are queried from radb.net using whois, you can try my project getting these.
:AS13599 route: 64.193.139.0/24 descr: Eisai origin: AS13599 mnt-by: MAINT-AS8001 changed: tkaufman [at] nac.net 20090309 #09:03:15z source: RADB last-modified: 2023-11-13T15:39:59Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 65.88.157.0/24 descr: Eisai origin: AS13599 mnt-by: MAINT-AS8001 changed: tkaufman [at] nac.net 20090309 #09:03:15z source: RADB last-modified: 2023-11-13T15:39:59Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 207.99.40.112/29 descr: Added on behalf of Eisai Medical origin: AS13599 mnt-by: MAINT-AS8001 changed: keisner [at] nac.net 20090528 #11:36:56Z source: RADB last-modified: 2023-11-13T15:40:00Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 207.99.114.0/24 descr: Proxy-registered route object origin: AS13599 remarks: auto-generated route object remarks: this next line gives the robot something to recognize remarks: L'enfer, c'est les autres remarks: remarks: This route object is for a Level 3 customer route remarks: which is being exported under this origin AS. remarks: remarks: This route object was created because no existing remarks: route object with the same origin was found, and remarks: since some Level 3 peers filter based on these objects remarks: this route may be rejected if this object is not created. remarks: remarks: Please contact dl-routing [at] lumen.com if you have any remarks: questions regarding this object. mnt-by: LEVEL3-MNT changed: roy [at] Level3.net 20060421 source: LEVEL3 rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source