These entries are queried from radb.net using whois, you can try my project getting these.
:AS40346 route: 199.48.249.0/24 origin: AS40346 descr: Adding Proxy on behalf of Equinix customer. LOA on File notify: smc_amer [at] equinix.com mnt-by: MAINT-AS14609 changed: nbabar [at] equinix.com 20231112 #20:14:26Z source: RADB last-modified: 2023-11-13T16:19:32Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 199.48.250.0/24 origin: AS40346 descr: BTNR remarks: Proxy object for AS40346 mnt-by: MAINT-AS22773 changed: cciatl-nocengineer [at] cox.com 20220513 source: RADB last-modified: 2023-11-13T16:11:05Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 199.48.251.0/24 origin: AS40346 descr: This is a proxy route object for an Equinix Connect Customer, Acadian Ambulance remarks: LOA is on a file. notify: smc_amer [at] equinix.com mnt-by: MAINT-AS14609 changed: ahashi [at] equinix.com 20220520 #20:41:19Z source: RADB last-modified: 2023-11-13T16:11:22Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source