These entries are queried from radb.net using whois, you can try my project getting these.
:AS1819 route: 4.53.46.96/27 descr: DCM Route origin: AS1819 mnt-by: AS1819-MNT changed: rob.royer [at] level3.com 20110512 source: LEVEL3 rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 38.137.128.0/19 origin: AS1819 descr: Route Registered for Cogent Communications Customer DCM Cable, Inc. dba Bridgenet Communications geoidx: US mnt-by: MAINT-AS174 changed: neteng [at] cogentco.com 20230515 #13:34:41Z source: RADB last-modified: 2023-11-13T16:17:12Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 38.137.128.0/20 origin: AS1819 descr: V4-PUB-CB-ANNOUNCED remarks: Change Ticket ECR000001682085 mnt-by: MAINT-AS22773 changed: cciatl-nocengineer [at] cox.com 20230831 source: RADB last-modified: 2023-11-13T16:18:20Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 38.137.144.0/20 origin: AS1819 descr: V4-PUB-CB-ANNOUNCED remarks: Change Ticket ECR000001682085 mnt-by: MAINT-AS22773 changed: cciatl-nocengineer [at] cox.com 20230831 source: RADB last-modified: 2023-11-13T16:18:20Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 98.163.82.0/23 origin: AS1819 descr: V4-PUB-CB-ANNOUNCED remarks: Change Ticket HD0000026946892 mnt-by: MAINT-AS22773 changed: cciatl-nocengineer [at] cox.com 20230315 source: RADB last-modified: 2023-11-13T16:15:24Z rpki-ov-state: valid route: 104.160.236.0/22 descr: DCM Route origin: AS1819 mnt-by: AS1819-MNT changed: eli.forson [at] centurylink.com 20200716 source: LEVEL3 rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 174.66.106.0/23 origin: AS1819 descr: GAIN remarks: Proxy object for AS1819 mnt-by: MAINT-AS22773 changed: cciatl-nocengineer [at] cox.com 20220513 source: RADB last-modified: 2023-11-13T16:11:05Z rpki-ov-state: valid route: 174.66.106.0/24 origin: AS1819 descr: GAIN remarks: Proxy object for AS1819 mnt-by: MAINT-AS22773 changed: cciatl-nocengineer [at] cox.com 20220513 source: RADB last-modified: 2023-11-13T16:11:05Z rpki-ov-state: valid route: 174.66.107.0/24 origin: AS1819 descr: GAIN remarks: Proxy object for AS1819 mnt-by: MAINT-AS22773 changed: cciatl-nocengineer [at] cox.com 20220513 source: RADB last-modified: 2023-11-13T16:11:05Z rpki-ov-state: valid route: 184.179.48.0/21 descr: DCM Route origin: AS1819 mnt-by: AS1819-MNT changed: ben.royster [at] centurylink.com 20191114 source: LEVEL3 rpki-ov-state: valid route: 184.179.48.0/22 descr: DCM Route origin: AS1819 mnt-by: AS1819-MNT changed: ben.royster [at] centurylink.com 20191114 source: LEVEL3 rpki-ov-state: valid route: 184.179.52.0/22 descr: DCM Route origin: AS1819 mnt-by: AS1819-MNT changed: ben.royster [at] centurylink.com 20191114 source: LEVEL3 rpki-ov-state: valid route: 198.212.52.0/22 descr: Route for AS1819 origin: AS1819 mnt-by: AS1819-MNT changed: benjamin.kapsch [at] level3.com 20151212 source: LEVEL3 rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 198.212.52.0/23 origin: AS1819 descr: GAIN #ECR000001350769 remarks: Proxy object for AS1819 mnt-by: MAINT-AS22773 changed: cciatl-nocengineer [at] cox.com 20220520 source: RADB last-modified: 2023-11-13T16:11:18Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 198.212.54.0/23 origin: AS1819 descr: GAIN #ECR000001350769 remarks: Proxy object for AS1819 mnt-by: MAINT-AS22773 changed: cciatl-nocengineer [at] cox.com 20220520 source: RADB last-modified: 2023-11-13T16:11:18Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 198.212.55.0/24 origin: AS1819 descr: GAIN #ECR000001350769 remarks: Proxy object for AS1819 mnt-by: MAINT-AS22773 changed: cciatl-nocengineer [at] cox.com 20220520 source: RADB last-modified: 2023-11-13T16:11:18Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 204.10.176.0/21 descr: DCM Route origin: AS1819 mnt-by: AS1819-MNT changed: rob.royer [at] level3.com 20110512 source: LEVEL3 rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 204.10.176.0/22 origin: AS1819 descr: GAIN #ECR000001350769 remarks: Proxy object for AS1819 mnt-by: MAINT-AS22773 changed: cciatl-nocengineer [at] cox.com 20220520 source: RADB last-modified: 2023-11-13T16:11:18Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 204.10.176.0/24 origin: AS1819 descr: GAIN #ECR000001350769 remarks: Proxy object for AS1819 mnt-by: MAINT-AS22773 changed: cciatl-nocengineer [at] cox.com 20220520 source: RADB last-modified: 2023-11-13T16:11:18Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 204.10.177.0/24 origin: AS1819 descr: GAIN #ECR000001350769 remarks: Proxy object for AS1819 mnt-by: MAINT-AS22773 changed: cciatl-nocengineer [at] cox.com 20220520 source: RADB last-modified: 2023-11-13T16:11:18Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 204.10.178.0/23 origin: AS1819 descr: GAIN #ECR000001350769 remarks: Proxy object for AS1819 mnt-by: MAINT-AS22773 changed: cciatl-nocengineer [at] cox.com 20220520 source: RADB last-modified: 2023-11-13T16:11:18Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 204.10.180.0/22 origin: AS1819 descr: GAIN #ECR000001350769 remarks: Proxy object for AS1819 mnt-by: MAINT-AS22773 changed: cciatl-nocengineer [at] cox.com 20220520 source: RADB last-modified: 2023-11-13T16:11:18Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 204.10.180.0/23 origin: AS1819 descr: GAIN #ECR000001350769 remarks: Proxy object for AS1819 mnt-by: MAINT-AS22773 changed: cciatl-nocengineer [at] cox.com 20220520 source: RADB last-modified: 2023-11-13T16:11:18Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 204.10.182.0/24 origin: AS1819 descr: GAIN #ECR000001350769 remarks: Proxy object for AS1819 mnt-by: MAINT-AS22773 changed: cciatl-nocengineer [at] cox.com 20220520 source: RADB last-modified: 2023-11-13T16:11:18Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 204.10.183.0/24 origin: AS1819 descr: GAIN #ECR000001350769 remarks: Proxy object for AS1819 mnt-by: MAINT-AS22773 changed: cciatl-nocengineer [at] cox.com 20220520 source: RADB last-modified: 2023-11-13T16:11:18Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source