These entries are queried from radb.net using whois, you can try my project getting these.
:AS4150 route: 63.162.120.0/21 descr: Route for CWIE Org ID 13649 origin: AS4150 mnt-by: LEVEL3-MNT changed: hadfield.richard [at] level3.com 20120831 source: LEVEL3 rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 63.163.120.0/21 descr: Route for CWIE Org ID 13649 origin: AS4150 mnt-by: LEVEL3-MNT changed: hadfield.richard [at] level3.com 20120831 source: LEVEL3 rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 66.170.0.0/19 descr: SupraNet origin: AS4150 mnt-by: MAINT-CHTR-WD changed: john.abeln [at] chartercom.com 20091028 source: RADB last-modified: 2023-11-13T16:11:25Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 66.170.0.0/19 descr: route update via web origin: AS4150 mnt-by: SUPRANET-MNT changed: hostmaster [at] supranet.net 20071207 source: LEVEL3 rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 66.170.0.0/19 descr: SupraNet Communications, Inc. descr: 8000 Excelsior Drive descr: Madison, WI 53711 descr: US origin: AS4150 notify: support [at] supranet.net mnt-by: MNT-SUPN changed: netreg [at] supranet.net 20120831 source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 66.170.26.0/24 descr: SupraNet Communications, Inc. origin: AS4150 notify: netreg [at] supranet.net mnt-by: MNT-SUPN changed: colinb [at] supranet.net 20160707 source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 162.218.0.0/22 descr: SupraNet Communications, Inc. descr: 8000 Excelsior Drive descr: Madison, WI 53711 descr: US origin: AS4150 notify: support [at] supranet.net mnt-by: MNT-SUPN changed: netreg [at] supranet.net 20130810 source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 162.218.0.0/22 descr: Proxy for SUPRANET Communications origin: AS4150 mnt-by: MAINT-CHTR-WD changed: steven.hurst [at] chartercom.com 20130812 #13:54:58Z source: RADB last-modified: 2023-11-13T16:11:26Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 162.218.2.0/24 descr: SupraNet Communications, Inc. origin: AS4150 notify: netreg [at] supranet.net mnt-by: MNT-SUPN changed: colinb [at] supranet.net 20160707 source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 162.250.40.0/22 descr: Proxy Entry for SupraNet AS4150 origin: AS4150 mnt-by: MAINT-CHTR-WD changed: james.graves [at] chartercom.com 20140106 #02:10:38Z source: RADB last-modified: 2023-11-13T16:11:26Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 192.101.144.0/24 descr: route update via web origin: AS4150 mnt-by: SUPRANET-MNT changed: hostmaster [at] supranet.net 20071207 source: LEVEL3 rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 192.101.144.0/24 descr: Proxy entry for SupraNet Communications origin: AS4150 mnt-by: MAINT-CHTR-WD changed: john.abeln [at] chartercom.com 20110615 source: RADB last-modified: 2023-11-13T16:11:26Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 192.236.28.0/22 descr: SupraNet AS4150 origin: AS4150 mnt-by: MAINT-CHTR-WD changed: rick.laporte [at] chartercom.com 20130221 #15:34:11Z source: RADB last-modified: 2023-11-13T16:11:26Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 198.27.60.0/22 descr: SupraNet Communications, Inc. descr: 8000 Excelsior Drive descr: Madison, WI 53711 descr: US origin: AS4150 notify: support [at] supranet.net mnt-by: MNT-SUPN changed: netreg [at] supranet.net 20130221 source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 198.27.60.0/22 descr: Route for CWIE Org ID 13649 origin: AS4150 mnt-by: LEVEL3-MNT changed: lindon.arthur [at] level3.com 20130221 source: LEVEL3 rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 198.27.60.0/22 descr: SupraNet AS4150 origin: AS4150 mnt-by: MAINT-CHTR-WD changed: rick.laporte [at] chartercom.com 20130221 #15:33:08Z source: RADB last-modified: 2023-11-13T16:11:26Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 199.91.248.0/22 descr: route update via web origin: AS4150 mnt-by: SUPRANET-MNT changed: mark.chohrach [at] level3.com 20110217 source: LEVEL3 rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 199.91.248.0/22 descr: Charter route proxy for SupraNet Communications, Inc. origin: AS4150 mnt-by: MAINT-CHTR-WD changed: terry.peters [at] chartercom.com 20110421 #18:34:28Z source: RADB last-modified: 2023-11-13T16:11:26Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 199.91.248.0/22 descr: SupraNet Communications, Inc. descr: 8000 Excelsior Drive descr: Madison, WI 53711 descr: US origin: AS4150 notify: support [at] supranet.net mnt-by: MNT-SUPN changed: netreg [at] supranet.net 20120831 source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2605:2580::/32 descr: Proxy Entry for SupraNet AS4150 origin: AS4150 mnt-by: MAINT-CHTR-WD changed: james.graves [at] chartercom.com 20140106 #02:14:47Z source: RADB last-modified: 2023-11-13T16:11:26Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2607:f4e0::/32 descr: CWIE origin: AS4150 mnt-by: LEVEL3-MNT changed: frank.delung [at] level3.com 20110331 source: LEVEL3 rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2607:f4e0::/32 descr: SupraNet Communications, Inc. descr: 8000 Excelsior Drive descr: Madison, WI 53711 descr: US origin: AS4150 notify: support [at] supranet.net mnt-by: MNT-SUPN changed: netreg [at] supranet.net 20120905 source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source