These entries are queried from radb.net using whois, you can try my project getting these.
:AS27609 route: 63.247.0.0/19 descr: USC Hospital/Horris Cancer Hospital origin: AS27609 notify: Prue [at] usc.edu notify: SandyG [at] usc.edu mnt-by: MAINT-AS226 changed: Prue [at] usc.edu 20081022 source: NTTCOM rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 63.247.0.0/24 descr: LosNettos origin: AS27609 mnt-by: MAINT-AS2150 changed: sriaz [at] cenic.org 20111115 #22:08:34Z source: RADB last-modified: 2023-11-13T15:41:54Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 63.247.1.0/24 descr: LosNettos origin: AS27609 mnt-by: MAINT-AS2150 changed: sriaz [at] cenic.org 20111115 #22:10:22Z source: RADB last-modified: 2023-11-13T15:41:54Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 63.247.2.0/24 descr: LosNettos origin: AS27609 mnt-by: MAINT-AS2150 changed: sriaz [at] cenic.org 20111115 #22:15:53Z source: RADB last-modified: 2023-11-13T15:41:54Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 63.247.3.0/24 descr: LosNettos origin: AS27609 mnt-by: MAINT-AS2150 changed: sriaz [at] cenic.org 20111115 #22:36:57Z source: RADB last-modified: 2023-11-13T15:41:54Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 63.247.4.0/24 descr: LosNettos origin: AS27609 mnt-by: MAINT-AS2150 changed: sriaz [at] cenic.org 20111115 #22:39:23Z source: RADB last-modified: 2023-11-13T15:41:54Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 63.247.5.0/24 descr: LosNettos origin: AS27609 mnt-by: MAINT-AS2150 changed: sriaz [at] cenic.org 20111115 #22:40:29Z source: RADB last-modified: 2023-11-13T15:41:54Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 63.247.6.0/24 descr: LosNettos origin: AS27609 mnt-by: MAINT-AS2150 changed: sriaz [at] cenic.org 20111115 #22:41:03Z source: RADB last-modified: 2023-11-13T15:41:54Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 63.247.7.0/24 descr: LosNettos origin: AS27609 mnt-by: MAINT-AS2150 changed: sriaz [at] cenic.org 20111116 #16:29:13Z source: RADB last-modified: 2023-11-13T15:41:54Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 63.247.8.0/24 descr: LosNettos origin: AS27609 mnt-by: MAINT-AS2150 changed: sriaz [at] cenic.org 20111116 #16:29:43Z source: RADB last-modified: 2023-11-13T15:41:54Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 63.247.9.0/24 descr: LosNettos origin: AS27609 mnt-by: MAINT-AS2150 changed: sriaz [at] cenic.org 20111116 #16:28:39Z source: RADB last-modified: 2023-11-13T15:41:54Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 63.247.10.0/24 descr: LosNettos origin: AS27609 mnt-by: MAINT-AS2150 changed: sriaz [at] cenic.org 20111116 #16:31:56Z source: RADB last-modified: 2023-11-13T15:41:54Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 63.247.11.0/24 descr: LosNettos origin: AS27609 mnt-by: MAINT-AS2150 changed: sriaz [at] cenic.org 20111116 #16:32:17Z source: RADB last-modified: 2023-11-13T15:41:54Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 63.247.12.0/24 descr: LosNettos origin: AS27609 mnt-by: MAINT-AS2150 changed: sriaz [at] cenic.org 20111116 #16:32:44Z source: RADB last-modified: 2023-11-13T15:41:54Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 63.247.13.0/24 descr: LosNettos origin: AS27609 mnt-by: MAINT-AS2150 changed: sriaz [at] cenic.org 20111116 #16:33:05Z source: RADB last-modified: 2023-11-13T15:41:54Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 63.247.14.0/24 descr: LosNettos origin: AS27609 mnt-by: MAINT-AS2150 changed: sriaz [at] cenic.org 20111116 #16:33:33Z source: RADB last-modified: 2023-11-13T15:41:54Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 63.247.15.0/24 descr: LosNettos origin: AS27609 mnt-by: MAINT-AS2150 changed: sriaz [at] cenic.org 20111116 #16:33:58Z source: RADB last-modified: 2023-11-13T15:41:54Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 63.247.16.0/24 descr: LosNettos origin: AS27609 mnt-by: MAINT-AS2150 changed: sriaz [at] cenic.org 20111116 #16:34:20Z source: RADB last-modified: 2023-11-13T15:41:54Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 63.247.17.0/24 descr: LosNettos origin: AS27609 mnt-by: MAINT-AS2150 changed: sriaz [at] cenic.org 20111116 #16:34:44Z source: RADB last-modified: 2023-11-13T15:41:54Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 63.247.18.0/24 descr: LosNettos origin: AS27609 mnt-by: MAINT-AS2150 changed: sriaz [at] cenic.org 20111116 #16:35:04Z source: RADB last-modified: 2023-11-13T15:41:54Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 63.247.19.0/24 descr: LosNettos origin: AS27609 mnt-by: MAINT-AS2150 changed: sriaz [at] cenic.org 20111116 #16:35:46Z source: RADB last-modified: 2023-11-13T15:41:54Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 63.247.20.0/24 descr: LosNettos origin: AS27609 mnt-by: MAINT-AS2150 changed: sriaz [at] cenic.org 20111116 #16:36:08Z source: RADB last-modified: 2023-11-13T15:41:54Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 63.247.21.0/24 descr: LosNettos origin: AS27609 mnt-by: MAINT-AS2150 changed: sriaz [at] cenic.org 20111116 #16:36:29Z source: RADB last-modified: 2023-11-13T15:41:54Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 63.247.22.0/24 descr: LosNettos origin: AS27609 mnt-by: MAINT-AS2150 changed: sriaz [at] cenic.org 20111116 #16:36:56Z source: RADB last-modified: 2023-11-13T15:41:54Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 63.247.23.0/24 descr: LosNettos origin: AS27609 mnt-by: MAINT-AS2150 changed: sriaz [at] cenic.org 20111116 #16:37:16Z source: RADB last-modified: 2023-11-13T15:41:54Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 63.247.24.0/24 descr: LosNettos origin: AS27609 mnt-by: MAINT-AS2150 changed: sriaz [at] cenic.org 20111116 #16:37:44Z source: RADB last-modified: 2023-11-13T15:41:54Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 63.247.25.0/24 descr: LosNettos origin: AS27609 mnt-by: MAINT-AS2150 changed: sriaz [at] cenic.org 20111116 #16:38:07Z source: RADB last-modified: 2023-11-13T15:41:54Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 63.247.26.0/24 descr: LosNettos origin: AS27609 mnt-by: MAINT-AS2150 changed: sriaz [at] cenic.org 20111116 #16:38:47Z source: RADB last-modified: 2023-11-13T15:41:54Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 63.247.27.0/24 descr: LosNettos origin: AS27609 mnt-by: MAINT-AS2150 changed: sriaz [at] cenic.org 20111116 #16:39:10Z source: RADB last-modified: 2023-11-13T15:41:54Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 63.247.28.0/24 descr: LosNettos origin: AS27609 mnt-by: MAINT-AS2150 changed: sriaz [at] cenic.org 20111116 #16:40:02Z source: RADB last-modified: 2023-11-13T15:41:54Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 63.247.29.0/24 descr: LosNettos origin: AS27609 mnt-by: MAINT-AS2150 changed: sriaz [at] cenic.org 20111116 #16:40:22Z source: RADB last-modified: 2023-11-13T15:41:54Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 63.247.30.0/24 descr: LosNettos origin: AS27609 mnt-by: MAINT-AS2150 changed: sriaz [at] cenic.org 20111116 #16:40:47Z source: RADB last-modified: 2023-11-13T15:41:54Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 63.247.31.0/24 descr: LosNettos origin: AS27609 mnt-by: MAINT-AS2150 changed: sriaz [at] cenic.org 20111116 #16:41:30Z source: RADB last-modified: 2023-11-13T15:41:54Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 206.117.132.0/22 descr: USC-UNIVERSITY-HOSPITAL origin: AS27609 notify: yadong [at] usc.edu notify: ypyun [at] usc.edu remarks: Proxy-registered route object mnt-by: MAINT-AS226 changed: yadong [at] usc.edu 20200618 source: NTTCOM rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 206.117.136.0/22 descr: USC-UNIVERSITY-HOSPITAL origin: AS27609 notify: yadong [at] usc.edu notify: ypyun [at] usc.edu remarks: Proxy-registered route object mnt-by: MAINT-AS226 changed: yadong [at] usc.edu 20200618 source: NTTCOM rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 206.117.144.0/22 descr: USC-UNIVERSITY-HOSPITAL origin: AS27609 notify: yadong [at] usc.edu notify: ypyun [at] usc.edu remarks: Proxy-registered route object mnt-by: MAINT-AS226 changed: yadong [at] usc.edu 20200618 source: NTTCOM rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 207.151.0.0/20 descr: USC-UNIVERSITY-HOSPITAL origin: AS27609 notify: yadong [at] usc.edu notify: ypyun [at] usc.edu remarks: Proxy-registered route object mnt-by: MAINT-AS226 changed: yadong [at] usc.edu 20200618 source: NTTCOM rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 207.151.18.0/24 descr: USC-UNIVERSITY-HOSPITAL origin: AS27609 notify: yadong [at] usc.edu notify: ypyun [at] usc.edu remarks: Proxy-registered route object mnt-by: MAINT-AS226 changed: yadong [at] usc.edu 20200618 source: NTTCOM rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 207.151.19.0/24 descr: USC-UNIVERSITY-HOSPITAL origin: AS27609 notify: yadong [at] usc.edu notify: ypyun [at] usc.edu remarks: Proxy-registered route object mnt-by: MAINT-AS226 changed: yadong [at] usc.edu 20200618 source: NTTCOM rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 207.151.20.0/22 descr: USC-UNIVERSITY-HOSPITAL origin: AS27609 notify: yadong [at] usc.edu notify: ypyun [at] usc.edu remarks: Proxy-registered route object mnt-by: MAINT-AS226 changed: yadong [at] usc.edu 20200618 source: NTTCOM rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 207.151.24.0/22 descr: USC-UNIVERSITY-HOSPITAL origin: AS27609 notify: yadong [at] usc.edu notify: ypyun [at] usc.edu remarks: Proxy-registered route object mnt-by: MAINT-AS226 changed: yadong [at] usc.edu 20200618 source: NTTCOM rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 207.151.28.0/23 descr: USC-UNIVERSITY-HOSPITAL origin: AS27609 notify: yadong [at] usc.edu notify: ypyun [at] usc.edu remarks: Proxy-registered route object mnt-by: MAINT-AS226 changed: yadong [at] usc.edu 20200618 source: NTTCOM rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 207.151.39.0/24 descr: USC-UNIVERSITY-HOSPITAL origin: AS27609 notify: yadong [at] usc.edu notify: ypyun [at] usc.edu remarks: Proxy-registered route object mnt-by: MAINT-AS226 changed: yadong [at] usc.edu 20200618 source: NTTCOM rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 207.151.40.0/22 descr: USC-UNIVERSITY-HOSPITAL origin: AS27609 notify: yadong [at] usc.edu notify: ypyun [at] usc.edu remarks: Proxy-registered route object mnt-by: MAINT-AS226 changed: yadong [at] usc.edu 20200618 source: NTTCOM rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 207.151.44.0/22 descr: USC-UNIVERSITY-HOSPITAL origin: AS27609 notify: yadong [at] usc.edu notify: ypyun [at] usc.edu remarks: Proxy-registered route object mnt-by: MAINT-AS226 changed: yadong [at] usc.edu 20200618 source: NTTCOM rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 207.151.48.0/24 descr: USC-UNIVERSITY-HOSPITAL origin: AS27609 notify: yadong [at] usc.edu notify: ypyun [at] usc.edu remarks: Proxy-registered route object mnt-by: MAINT-AS226 changed: yadong [at] usc.edu 20200618 source: NTTCOM rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 207.151.50.0/24 descr: USC-UNIVERSITY-HOSPITAL origin: AS27609 notify: yadong [at] usc.edu notify: ypyun [at] usc.edu remarks: Proxy-registered route object mnt-by: MAINT-AS226 changed: yadong [at] usc.edu 20200618 source: NTTCOM rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 207.151.83.0/24 descr: USC-UNIVERSITY-HOSPITAL origin: AS27609 notify: yadong [at] usc.edu notify: ypyun [at] usc.edu remarks: Proxy-registered route object mnt-by: MAINT-AS226 changed: yadong [at] usc.edu 20200618 source: NTTCOM rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 207.151.84.0/22 descr: USC-UNIVERSITY-HOSPITAL origin: AS27609 notify: yadong [at] usc.edu notify: ypyun [at] usc.edu remarks: Proxy-registered route object mnt-by: MAINT-AS226 changed: yadong [at] usc.edu 20200618 source: NTTCOM rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source