These entries are queried from radb.net using whois, you can try my project getting these.
:AS16710 route: 149.48.128.0/20 origin: AS16710 descr: MRFD remarks: Proxy object for AS16710 mnt-by: MAINT-AS22773 changed: cciatl-nocengineer [at] cox.com 20220513 source: RADB last-modified: 2023-11-13T16:11:05Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 149.48.190.0/23 descr: Public Broadcasting Service origin: AS16710 remarks: Public Broadcasting Service remarks: Originated by PBS and advertised by Shentel for VA DR notify: bob.alexander [at] emp.shentel.com mnt-by: MAINT-SHENTEL changed: bob.alexander [at] emp.shentel.com 20150427 source: NTTCOM rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 149.48.191.0/24 origin: AS16710 descr: MRFD #ECR000001350769 remarks: Proxy object for AS16710 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: 149.48.223.0/24 descr: PublicBroadcastingService origin: AS16710 remarks: Public Broadcasting Service remarks: Originated by Public Broadcasting Service and advertised by Shentel notify: patrick.stevenson [at] emp.shentel.com mnt-by: MAINT-SHENTEL changed: patrick.stevenson [at] emp.shentel.com 20211122 source: NTTCOM last-modified: 2021-11-22T18:04:32Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 149.48.224.0/19 descr: PublicBroadcastingService origin: AS16710 remarks: Public Broadcasting Service remarks: Originated by Public Broadcasting Service and advertised by Shentel notify: patrick.stevenson [at] emp.shentel.com mnt-by: MAINT-SHENTEL changed: patrick.stevenson [at] emp.shentel.com 20211122 source: NTTCOM last-modified: 2021-11-22T18:04:32Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 149.48.224.0/24 origin: AS16710 descr: MRFD #ECR000001350769 remarks: Proxy object for AS16710 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: 149.48.225.0/24 origin: AS16710 descr: MRFD #ECR000001350769 remarks: Proxy object for AS16710 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: 149.48.226.0/24 origin: AS16710 descr: MRFD #ECR000001350769 remarks: Proxy object for AS16710 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: 149.48.227.0/24 origin: AS16710 descr: MRFD #ECR000001350769 remarks: Proxy object for AS16710 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: 149.48.228.0/24 origin: AS16710 descr: MRFD #ECR000001350769 remarks: Proxy object for AS16710 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: 149.48.229.0/24 origin: AS16710 descr: MRFD #ECR000001350769 remarks: Proxy object for AS16710 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: 149.48.230.0/24 origin: AS16710 descr: MRFD #ECR000001350769 remarks: Proxy object for AS16710 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: 149.48.235.0/24 origin: AS16710 descr: MRFD #ECR000001350769 remarks: Proxy object for AS16710 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: 149.48.238.0/24 origin: AS16710 descr: MRFD #ECR000001350769 remarks: Proxy object for AS16710 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