These entries are queried from radb.net using whois, you can try my project getting these.
:AS46847 route: 12.183.29.0/24 descr: Comcast Cable Communications, Inc. 1800 Bishops Gate Blvd Mt Laurel, NJ 08054 origin: AS46847 remarks: Proxy add for EDIA customer Nexvortex Inc mnt-by: MAINT-AS7922 changed: ryan_mcclean [at] comcast.com 20181217 source: RADB last-modified: 2023-11-13T15:55:22Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 38.97.197.0/24 descr: Comcast Cable Communications, Inc. 1800 Bishops Gate Blvd Mt Laurel, NJ 08054 origin: AS46847 remarks: Proxy add for EDIA customer Nexvort mnt-by: MAINT-AS7922 changed: rodney_finley [at] cable.comcast.com 20200805 source: RADB last-modified: 2023-11-13T16:01:18Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 38.134.104.0/24 descr: Comcast Cable Communications, Inc. 1800 Bishops Gate Blvd Mt Laurel, NJ 08054 origin: AS46847 remarks: Proxy add for EDIA customer Nexvortex Inc mnt-by: MAINT-AS7922 changed: ryan_mcclean [at] comcast.com 20181217 source: RADB last-modified: 2023-11-13T15:55:22Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 50.228.166.0/24 origin: AS46847 descr: Comcast Cable Communications, Inc. 1800 Bishops Gate Blvd Mt Laurel, NJ 08054 remarks: Customer Nexvortex INC mnt-by: MAINT-AS7922 changed: wyatt_clarke [at] cable.comcast.com 20190920 #23:53:44Z source: RADB last-modified: 2023-11-13T15:57:47Z rpki-ov-state: valid route: 63.76.79.0/24 descr: Comcast Cable Communications, Inc. 1800 Bishops Gate Blvd Mt Laurel, NJ 08054 origin: AS46847 remarks: Proxy add for EDIA customer Nexvort mnt-by: MAINT-AS7922 changed: rodney_finley [at] cable.comcast.com 20200805 source: RADB last-modified: 2023-11-13T16:01:18Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 66.23.129.0/24 descr: PNAP-WDC002 nexvortex-1[C[C[C[C[C[C[D[D[3~[C[C[D origin: AS46847 mnt-by: MAINT-AS1828 changed: mjasmin [at] internap.com 20160215 source: RADB last-modified: 2023-11-13T16:14:54Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 67.219.144.0/23 descr: PNAP-NYM enginey route origin: AS46847 mnt-by: MAINT-AS1828 changed: dennisc [at] internap.com 20090430 source: RADB last-modified: 2023-11-13T16:14:15Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 67.219.146.0/24 descr: PNAP-NYM enginey route origin: AS46847 mnt-by: MAINT-AS1828 changed: dennisc [at] internap.com 20090430 source: RADB last-modified: 2023-11-13T16:14:15Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 67.219.147.0/24 descr: PNAP-NYM enginey route origin: AS46847 mnt-by: MAINT-AS1828 changed: dennisc [at] internap.com 20090430 source: RADB last-modified: 2023-11-13T16:14:15Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 67.219.148.0/23 descr: PNAP-NYM enginey route origin: AS46847 mnt-by: MAINT-AS1828 changed: dennisc [at] internap.com 20090430 source: RADB last-modified: 2023-11-13T16:14:15Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 67.219.150.0/24 descr: PNAP-SJE enginey routes origin: AS46847 mnt-by: MAINT-AS1828 changed: roneal [at] internap.com 20090421 source: RADB last-modified: 2023-11-13T16:14:15Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 67.219.151.0/24 descr: PNAP-SJE enginey routes origin: AS46847 mnt-by: MAINT-AS1828 changed: roneal [at] internap.com 20090421 source: RADB last-modified: 2023-11-13T16:14:15Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 67.219.152.0/24 descr: PNAP-SJE enginey routes origin: AS46847 mnt-by: MAINT-AS1828 changed: roneal [at] internap.com 20090421 source: RADB last-modified: 2023-11-13T16:14:15Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 67.219.153.0/24 descr: PNAP-SJE enginey routes origin: AS46847 mnt-by: MAINT-AS1828 changed: roneal [at] internap.com 20090421 source: RADB last-modified: 2023-11-13T16:14:15Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 67.219.154.0/24 descr: PNAP-SJE enginey routes origin: AS46847 mnt-by: MAINT-AS1828 changed: roneal [at] internap.com 20090421 source: RADB last-modified: 2023-11-13T16:14:15Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 67.219.155.0/24 descr: PNAP-SFO enginey routes origin: AS46847 mnt-by: MAINT-AS1828 changed: roneal [at] internap.com 20090421 source: RADB last-modified: 2023-11-13T16:14:15Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 67.219.156.0/24 descr: PNAP-SFO enginey routes origin: AS46847 mnt-by: MAINT-AS1828 changed: roneal [at] internap.com 20090421 source: RADB last-modified: 2023-11-13T16:14:15Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 67.219.157.0/24 descr: PNAP-SFO enginey routes origin: AS46847 mnt-by: MAINT-AS1828 changed: roneal [at] internap.com 20090421 source: RADB last-modified: 2023-11-13T16:14:15Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 67.219.158.0/24 descr: PNAP-SFO enginey routes origin: AS46847 mnt-by: MAINT-AS1828 changed: roneal [at] internap.com 20090421 source: RADB last-modified: 2023-11-13T16:14:15Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 67.219.159.0/24 descr: PNAP-SFO enginey routes origin: AS46847 mnt-by: MAINT-AS1828 changed: roneal [at] internap.com 20090421 source: RADB last-modified: 2023-11-13T16:14:15Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 70.42.130.0/24 descr: PNAP-SJE enginey sje/sfo origin: AS46847 mnt-by: MAINT-AS1828 changed: colsheski [at] internap.com 20090403 source: RADB last-modified: 2023-11-13T16:14:15Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 71.67.34.0/24 descr: RS-RC-nexVortex-Midwest origin: AS46847 notify: publicipaddressing [at] charter.com mnt-by: MAINT-RR changed: publicipaddressing [at] charter.com 20190722 #20:39:09Z source: RADB last-modified: 2023-11-13T16:15:19Z rpki-ov-state: valid route: 104.219.160.0/22 descr: Comcast Cable Communications, Inc. 1800 Bishops Gate Blvd Mt Laurel, NJ 08054 origin: AS46847 remarks: Proxy entry for customer NexVortex mnt-by: MAINT-AS7922 changed: wyatt_clarke [at] cable.comcast.com 20150318 #21:43:49Z source: RADB last-modified: 2023-11-13T15:54:10Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 104.219.160.0/24 descr: PNAP-WDC002 nexvortex-1[C[C[C[C[C[C[D[D[3~[C[C[D origin: AS46847 mnt-by: MAINT-AS1828 changed: mjasmin [at] internap.com 20160215 source: RADB last-modified: 2023-11-13T16:14:54Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 104.219.161.0/24 descr: PNAP-WDC002 nexvortex-routes origin: AS46847 mnt-by: MAINT-AS1828 changed: rsaddler [at] internap.com 20190926 source: RADB last-modified: 2023-11-13T16:16:51Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 104.219.162.0/24 descr: PNAP-WDC002 nexvortex-routes origin: AS46847 mnt-by: MAINT-AS1828 changed: rsaddler [at] internap.com 20190926 source: RADB last-modified: 2023-11-13T16:16:51Z rpki-ov-state: valid route: 104.219.163.0/24 descr: PNAP-WDC002 nexvortex-1[C[C[C[C[C[C[D[D[3~[C[C[D origin: AS46847 mnt-by: MAINT-AS1828 changed: mjasmin [at] internap.com 20160215 source: RADB last-modified: 2023-11-13T16:14:54Z rpki-ov-state: valid route: 209.193.79.0/24 descr: Comcast Cable Communications, Inc. 1800 Bishops Gate Blvd Mt Laurel, NJ 08054 origin: AS46847 remarks: Proxy add for EDIA customer Nexvort mnt-by: MAINT-AS7922 changed: rodney_finley [at] cable.comcast.com 20200805 source: RADB last-modified: 2023-11-13T16:01:18Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 216.52.120.0/24 descr: PNAP-WDC002 nexvortex-1[C[C[C[C[C[C[D[D[3~[C[C[D origin: AS46847 mnt-by: MAINT-AS1828 changed: mjasmin [at] internap.com 20160215 source: RADB last-modified: 2023-11-13T16:14:54Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source