These entries are queried from radb.net using whois, you can try my project getting these.
:AS30512 route: 66.23.192.0/19 descr: NetLogic-STL origin: AS30512 mnt-by: ILDN-MNT changed: nicholas.etnoyer [at] level3.com 20110412 source: LEVEL3 rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 69.54.76.0/24 descr: NetLogic-STL origin: AS30512 mnt-by: ILDN-MNT changed: clarke.wyatt [at] level3.com 20110625 source: LEVEL3 rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 173.247.128.0/19 descr: NetLogic-STL origin: AS30512 mnt-by: ILDN-MNT changed: nicholas.etnoyer [at] level3.com 20110412 source: LEVEL3 rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 198.207.129.0/24 descr: Proxy registration to prevent harm from ARIN-NONAUTH shutdown origin: AS30512 mnt-by: MAINT-AS7034 changed: kennethfinnegan2007 [at] gmail.com 20220404 source: ALTDB rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 206.80.64.0/20 descr: NetLogic-STL origin: AS30512 mnt-by: ILDN-MNT changed: myoung [at] netlogic.net 20040513 source: LEVEL3 rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 206.80.80.0/20 descr: NetLogic-SF-aggregation origin: AS30512 mnt-by: ILDN-MNT changed: myoung [at] netlogic.net 20050519 source: LEVEL3 rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 206.80.85.0/24 descr: Proxy-registered route object origin: AS30512 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 20070111 source: LEVEL3 rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 209.40.253.0/24 descr: Harris GCSD Cybe origin: AS30512 mnt-by: ILDN-MNT changed: mark.bullock [at] level3.com 20110222 source: LEVEL3 rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 209.40.254.0/23 descr: Customer Route origin: AS30512 mnt-by: ILDN-MNT changed: steve.musser [at] level3.com 20080414 source: LEVEL3 rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source