These entries are queried from radb.net using whois, you can try my project getting these.
:AS11203 route: 38.51.112.0/21 origin: AS11203 descr: Route Registered for Cogent Communications Customer Matrix Broadband geoidx: US mnt-by: MAINT-AS174 changed: neteng [at] cogentco.com 20220701 #18:18:23Z source: RADB last-modified: 2023-11-13T16:11:42Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 192.0.8.0/21 descr: Zinnia Networks Inc DBA CalDSL descr: 1660 W Linne Road, Suite H descr: Tracy CA, 95377 descr: US origin: AS11203 mnt-by: MNT-ZINNI-1 changed: cjasty [at] gmail.com 20181029 source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 192.0.8.0/21 descr: Comcast Cable Communications, Inc. 1800 Bishops Gate Blvd Mt Laurel, NJ 08054 origin: AS11203 remarks: Proxy add for EDIA customer Zinnia Networks Inc mnt-by: MAINT-AS7922 changed: nathan_logan [at] comcast.com 20220323 source: RADB last-modified: 2023-11-13T16:10:10Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 192.0.9.0/24 descr: Comcast Cable Communications, Inc. 1800 Bishops Gate Blvd Mt Laurel, NJ 08054 origin: AS11203 remarks: Proxy add for EDIA customer Zinnia Networks Inc mnt-by: MAINT-AS7922 changed: nathan_logan [at] comcast.com 20220323 source: RADB last-modified: 2023-11-13T16:10:10Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 192.0.10.0/24 descr: Comcast Cable Communications, Inc. 1800 Bishops Gate Blvd Mt Laurel, NJ 08054 origin: AS11203 remarks: Proxy add for EDIA customer Zinnia Networks Inc mnt-by: MAINT-AS7922 changed: nathan_logan [at] comcast.com 20220323 source: RADB last-modified: 2023-11-13T16:10:10Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 192.0.11.0/24 descr: Comcast Cable Communications, Inc. 1800 Bishops Gate Blvd Mt Laurel, NJ 08054 origin: AS11203 remarks: Proxy add for EDIA customer Zinnia Networks Inc mnt-by: MAINT-AS7922 changed: nathan_logan [at] comcast.com 20220323 source: RADB last-modified: 2023-11-13T16:10:10Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 192.0.12.0/24 descr: Comcast Cable Communications, Inc. 1800 Bishops Gate Blvd Mt Laurel, NJ 08054 origin: AS11203 remarks: Proxy add for EDIA customer Zinnia Networks Inc mnt-by: MAINT-AS7922 changed: nathan_logan [at] comcast.com 20220323 source: RADB last-modified: 2023-11-13T16:10:10Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 192.0.13.0/24 descr: Comcast Cable Communications, Inc. 1800 Bishops Gate Blvd Mt Laurel, NJ 08054 origin: AS11203 remarks: Proxy add for EDIA customer Zinnia Networks Inc mnt-by: MAINT-AS7922 changed: nathan_logan [at] comcast.com 20220323 source: RADB last-modified: 2023-11-13T16:10:10Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 192.0.14.0/24 descr: Comcast Cable Communications, Inc. 1800 Bishops Gate Blvd Mt Laurel, NJ 08054 origin: AS11203 remarks: Proxy add for EDIA customer Zinnia Networks Inc mnt-by: MAINT-AS7922 changed: nathan_logan [at] comcast.com 20220323 source: RADB last-modified: 2023-11-13T16:10:10Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 192.0.15.0/24 descr: Comcast Cable Communications, Inc. 1800 Bishops Gate Blvd Mt Laurel, NJ 08054 origin: AS11203 remarks: Proxy add for EDIA customer Zinnia Networks Inc mnt-by: MAINT-AS7922 changed: nathan_logan [at] comcast.com 20220323 source: RADB last-modified: 2023-11-13T16:10:10Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 192.209.0.0/24 descr: Zinnia Networks Inc DBA CalDSL descr: 1660 W Linne Road, Suite H descr: Tracy CA, 95377 descr: US origin: AS11203 mnt-by: MNT-ZINNI-1 changed: cjasty [at] gmail.com 20181029 source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 192.209.0.0/24 descr: Comcast Cable Communications, Inc. 1800 Bishops Gate Blvd Mt Laurel, NJ 08054 origin: AS11203 remarks: Proxy add for EDIA customer Zinnia Networks Inc mnt-by: MAINT-AS7922 changed: nathan_logan [at] comcast.com 20220323 source: RADB last-modified: 2023-11-13T16:10:10Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source