These entries are queried from radb.net using whois, you can try my project getting these.
:AS32326 route: 12.40.49.0/24 descr: L1 Identity origin: AS32326 mnt-by: CONV-MNT changed: erioux [at] onecommunications.com 20100219 source: LEVEL3 rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 12.40.49.0/24 descr: Comcast Cable Communications, Inc. 1800 Bishops Gate Blvd Mt Laurel, NJ 08054 origin: AS32326 remarks: Proxy entry for customer Morphotrust USA mnt-by: MAINT-AS7922 changed: matthew_berlin [at] cable.comcast.com 20160323 #16:24:59Z source: RADB last-modified: 2023-11-13T15:54:11Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 12.172.39.0/24 descr: L1 Identity origin: AS32326 mnt-by: CONV-MNT changed: erioux [at] onecommunications.com 20100219 source: LEVEL3 rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 12.172.39.0/24 descr: Comcast Cable Communications, Inc. 1800 Bishops Gate Blvd Mt Laurel, NJ 08054 origin: AS32326 remarks: Proxy entry for customer Morphotrust USA mnt-by: MAINT-AS7922 changed: matthew_berlin [at] cable.comcast.com 20160323 #16:23:33Z source: RADB last-modified: 2023-11-13T15:54:11Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 38.95.207.0/24 descr: Comcast Cable Communications, Inc. 1800 Bishops Gate Blvd Mount Laurel, NJ 08054 origin: AS32326 remarks: Proxy entry for EDI customer MorphoTrust mnt-by: MAINT-AS7922 changed: courtney_smith [at] nospamcable.comcast.com 20180821 source: RADB last-modified: 2023-11-13T15:54:28Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 65.218.227.0/24 descr: RR-RC-IDEMIA AMERICA CORP-West origin: AS32326 admin-c: IPADDREG tech-c: IPADDREG notify: publicipaddressing [at] charter.com mnt-by: MAINT-RR changed: publicipaddressing [at] charter.com 20210526 #16:54:14Z source: RADB last-modified: 2023-11-13T16:15:18Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 74.120.212.0/22 descr: Comcast Cable Communications, Inc. 1800 Bishops Gate Blvd Mt Laurel, NJ 08054 origin: AS32326 remarks: Proxy add for EDIA customer Morpho Trust mnt-by: MAINT-AS7922 changed: orin_flaharty [at] cable.comcast.com 20180606 source: RADB last-modified: 2023-11-13T15:54:23Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 74.120.212.0/23 descr: L1 Identity origin: AS32326 mnt-by: CONV-MNT changed: erioux [at] onecommunications.com 20100219 source: LEVEL3 rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 74.120.212.0/23 descr: Comcast Cable Communications, Inc. 1800 Bishops Gate Blvd Mt Laurel, NJ 08054 origin: AS32326 remarks: Proxy entry for customer Morphotrust USA mnt-by: MAINT-AS7922 changed: matthew_berlin [at] cable.comcast.com 20160323 #16:24:15Z source: RADB last-modified: 2023-11-13T15:54:11Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 74.120.212.0/24 origin: AS32326 descr: SCTASK1123190 mnt-by: MAINT-FLEXENTIAL changed: DL-BB-Engineering [at] flexential.com 20230505 #16:10:37Z source: RADB last-modified: 2023-11-13T16:17:09Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 74.120.215.0/24 origin: AS32326 descr: SCTASK1123190 mnt-by: MAINT-FLEXENTIAL changed: DL-BB-Engineering [at] flexential.com 20230801 #13:58:42Z source: RADB last-modified: 2023-11-13T16:17:50Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 74.120.215.0/24 descr: Proxy registration to prevent harm from ARIN-NONAUTH shutdown origin: AS32326 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