These entries are queried from radb.net using whois, you can try my project getting these.
:AS53494 route: 199.175.60.0/22 descr: Proxy for Lantern Hill origin: AS53494 mnt-by: MAINT-AS33554 changed: skhosla [at] neutraldata.com 20120411 #14:22:37Z source: RADB last-modified: 2023-11-13T15:58:59Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 199.175.60.0/24 descr: Lantern Hill IT Inc. member-of: rs-LHIT origin: AS53494 mnt-by: MNT-LANTE-2 changed: rmercier [at] lanternhillit.com 20130813 source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 199.175.60.0/24 descr: Proxy for Lantern Hill origin: AS53494 mnt-by: MAINT-AS33554 changed: skhosla [at] neutraldata.com 20120411 #14:23:11Z source: RADB last-modified: 2023-11-13T15:58:59Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 199.175.61.0/24 descr: Lantern Hill IT Inc. member-of: rs-LHIT origin: AS53494 mnt-by: MNT-LANTE-2 changed: rmercier [at] lanternhillit.com 20130813 source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 199.175.61.0/24 descr: Proxy for Lantern Hill origin: AS53494 mnt-by: MAINT-AS33554 changed: skhosla [at] neutraldata.com 20120411 #14:23:45Z source: RADB last-modified: 2023-11-13T15:58:59Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 199.175.62.0/24 descr: Proxy for Lantern Hill origin: AS53494 mnt-by: MAINT-AS33554 changed: skhosla [at] neutraldata.com 20120411 #14:24:19Z source: RADB last-modified: 2023-11-13T15:58:59Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 199.175.62.0/24 descr: Lantern Hill IT Inc. member-of: rs-LHIT origin: AS53494 mnt-by: MNT-LANTE-2 changed: rmercier [at] lanternhillit.com 20130813 source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 199.175.63.0/24 descr: Lantern Hill IT Inc. member-of: rs-LHIT origin: AS53494 mnt-by: MNT-LANTE-2 changed: rmercier [at] lanternhillit.com 20130813 source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 199.175.63.0/24 descr: Proxy for Lantern Hill origin: AS53494 mnt-by: MAINT-AS33554 changed: skhosla [at] neutraldata.com 20120411 #14:25:45Z source: RADB last-modified: 2023-11-13T15:58:59Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source