These entries are queried from radb.net using whois, you can try my project getting these.
:AS27482 route: 12.53.28.0/22 descr: Comcast Cable Communications, Inc. 1800 Bishops Gate Blvd Mt Laurel, NJ 08054 origin: AS27482 remarks: Proxy add for EDIA customer AmericanEagle mnt-by: MAINT-AS7922 changed: jaime_castaneda [at] cable.comcast.com 20220829 source: RADB last-modified: 2023-11-13T16:12:25Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 12.53.28.0/24 descr: Prolexic Technologies, Inc. origin: AS27482 mnt-by: MAINT-AS32787 changed: jcalvoch [at] akamai.com 20160616 #18:58:33Z source: RADB last-modified: 2023-11-13T16:13:33Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 12.53.29.0/24 descr: Prolexic Technologies, Inc. origin: AS27482 mnt-by: MAINT-AS32787 notify: hostmaster [at] prolexic.com changed: abenage [at] akamai.com 20150723 source: RADB last-modified: 2023-11-13T16:13:32Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 12.53.30.0/24 descr: Prolexic Technologies, Inc. origin: AS27482 mnt-by: MAINT-AS32787 notify: hostmaster [at] prolexic.com changed: abenage [at] akamai.com 20150723 source: RADB last-modified: 2023-11-13T16:13:32Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 12.53.31.0/24 descr: Prolexic Technologies, Inc. origin: AS27482 mnt-by: MAINT-AS32787 changed: rguerra [at] akamai.com 20160621 #23:40:35Z source: RADB last-modified: 2023-11-13T16:13:33Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 12.133.120.0/22 origin: AS27482 descr: ATT mnt-by: MAINT-AS27482 changed: markk [at] americaneagle.com 20220825 #18:31:42Z source: RADB last-modified: 2023-11-13T16:12:12Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 12.133.121.0/24 descr: Prolexic Technologies, Inc. origin: AS27482 mnt-by: MAINT-AS32787 notify: hostmaster [at] prolexic.com changed: kfelix [at] prolexic.com 20120418 source: RADB last-modified: 2023-11-13T16:13:33Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 12.133.122.0/24 descr: Prolexic Technologies, Inc. origin: AS27482 mnt-by: MAINT-AS32787 notify: hostmaster [at] prolexic.com changed: bdaly [at] prolexic.com 20121209 source: RADB last-modified: 2023-11-13T16:13:33Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 12.167.4.0/23 origin: AS27482 descr: ATT mnt-by: MAINT-AS27482 changed: markk [at] americaneagle.com 20220825 #18:31:03Z source: RADB last-modified: 2023-11-13T16:12:12Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 12.167.4.0/24 descr: Prolexic Technologies, Inc. origin: AS27482 notify: hostmaster [at] prolexic.com mnt-by: MAINT-AS32787 changed: fleandre [at] akamai.com 20180123 #08:39:08Z source: RADB last-modified: 2023-11-13T16:13:33Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 12.167.5.0/24 descr: Prolexic Technologies, Inc. origin: AS27482 notify: hostmaster [at] prolexic.com mnt-by: MAINT-AS32787 changed: fleandre [at] akamai.com 20200409 #10:52:32Z source: RADB last-modified: 2023-11-13T16:13:34Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 12.198.148.0/24 origin: AS27482 descr: Proxy object for American Eagle.com admin-c: INO44-ARIN tech-c: INO44-ARIN notify: ispadmin [at] tdstelecom.com mnt-by: MAINT-TDST changed: rich.deprez [at] tdstelecom.com 20220318 #19:50:15Z source: RADB last-modified: 2023-11-13T16:10:09Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 12.198.149.0/24 origin: AS27482 descr: Proxy object for American Eagle.com admin-c: INO44-ARIN tech-c: INO44-ARIN notify: ispadmin [at] tdstelecom.com mnt-by: MAINT-TDST changed: rich.deprez [at] tdstelecom.com 20220318 #19:51:04Z source: RADB last-modified: 2023-11-13T16:10:09Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 12.199.222.0/23 origin: AS27482 descr: ATT121992220 mnt-by: MAINT-AS27482 changed: markk [at] americaneagle.com 20220825 #18:28:05Z source: RADB last-modified: 2023-11-13T16:12:12Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 65.119.160.0/24 descr: Prolexic Technologies, Inc. origin: AS27482 mnt-by: MAINT-AS32787 notify: hostmaster [at] prolexic.com changed: abenage [at] prolexic.com 20140709 source: RADB last-modified: 2023-11-13T16:13:33Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 65.119.162.0/23 descr: Prolexic Technologies, Inc. origin: AS27482 mnt-by: MAINT-AS32787 notify: hostmaster [at] prolexic.com changed: abenage [at] akamai.com 20150222 source: RADB last-modified: 2023-11-13T16:13:32Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 68.72.70.0/23 descr: First Aggregate Route origin: AS27482 mnt-by: MAINT-AS27482 changed: markk [at] americaneagle.com 20031031 #20:16:19(UTC) source: RADB last-modified: 2023-11-13T15:56:26Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 68.72.72.0/22 descr: Second Route origin: AS27482 mnt-by: MAINT-AS27482 changed: markk [at] americaneagle.com 20031031 #20:22:12(UTC) source: RADB last-modified: 2023-11-13T15:56:26Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 68.77.209.0/24 descr: Third Route origin: AS27482 mnt-by: MAINT-AS27482 changed: markk [at] americaneagle.com 20031031 #20:22:57(UTC) source: RADB last-modified: 2023-11-13T15:56:26Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 68.252.156.0/22 descr: Fourth Route origin: AS27482 mnt-by: MAINT-AS27482 changed: markk [at] americaneagle.com 20040211 #20:45:26(UTC) source: RADB last-modified: 2023-11-13T15:56:26Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 76.227.208.0/20 descr: Fifth-route origin: AS27482 mnt-by: MAINT-AS27482 changed: markk [at] americaneagle.com 20070706 #20:32:52(UTC) source: RADB last-modified: 2023-11-13T15:56:26Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 76.227.212.0/24 descr: Prolexic Technologies, Inc. origin: AS27482 mnt-by: MAINT-AS32787 notify: hostmaster [at] prolexic.com changed: jcasco [at] prolexic.com 20131030 source: RADB last-modified: 2023-11-13T16:13:32Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 76.227.213.0/24 descr: Prolexic Technologies, Inc. origin: AS27482 mnt-by: MAINT-AS32787 notify: hostmaster [at] prolexic.com changed: kfelix [at] prolexic.com 20120418 source: RADB last-modified: 2023-11-13T16:13:33Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 76.227.214.0/24 descr: Prolexic Technologies, Inc. origin: AS27482 mnt-by: MAINT-AS32787 notify: hostmaster [at] prolexic.com changed: kfelix [at] prolexic.com 20120418 source: RADB last-modified: 2023-11-13T16:13:33Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 76.227.216.0/24 descr: Prolexic Technologies, Inc. origin: AS27482 mnt-by: MAINT-AS32787 notify: hostmaster [at] prolexic.com changed: kfelix [at] prolexic.com 20120418 source: RADB last-modified: 2023-11-13T16:13:33Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 76.227.217.0/24 descr: Prolexic Technologies, Inc. origin: AS27482 mnt-by: MAINT-AS32787 notify: hostmaster [at] prolexic.com changed: kfelix [at] prolexic.com 20120418 source: RADB last-modified: 2023-11-13T16:13:33Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 76.227.219.0/24 descr: Prolexic Technologies, Inc. origin: AS27482 mnt-by: MAINT-AS32787 notify: hostmaster [at] prolexic.com changed: kfelix [at] prolexic.com 20120418 source: RADB last-modified: 2023-11-13T16:13:33Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 76.227.221.0/24 descr: Prolexic Technologies, Inc. origin: AS27482 mnt-by: MAINT-AS32787 notify: hostmaster [at] prolexic.com changed: kfelix [at] prolexic.com 20120418 source: RADB last-modified: 2023-11-13T16:13:33Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 76.227.222.0/24 descr: Prolexic Technologies, Inc. origin: AS27482 mnt-by: MAINT-AS32787 notify: hostmaster [at] prolexic.com changed: kfelix [at] prolexic.com 20120418 source: RADB last-modified: 2023-11-13T16:13:33Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 76.227.223.0/24 descr: Prolexic Technologies, Inc. origin: AS27482 mnt-by: MAINT-AS32787 notify: hostmaster [at] prolexic.com changed: kfelix [at] prolexic.com 20120418 source: RADB last-modified: 2023-11-13T16:13:33Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source