These entries are queried from radb.net using whois, you can try my project getting these.
:AS393496 route: 104.255.20.0/24 descr: Proxy Registration for Databank-DFW Customer origin: AS393496 mnt-by: MAINT-AS13767 changed: networking [at] databank.com 20180628 #16:11:29Z source: RADB last-modified: 2023-11-13T15:54:01Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 104.255.21.0/24 descr: Proxy Registration for Databank-DFW Customer origin: AS393496 mnt-by: MAINT-AS13767 changed: networking [at] databank.com 20180628 #16:11:29Z source: RADB last-modified: 2023-11-13T15:54:01Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 104.255.23.0/24 origin: AS393496 descr: MTC1 remarks: Proxy object for AS393496 mnt-by: MAINT-AS22773 changed: cciatl-nocengineer [at] cox.com 20220513 source: RADB last-modified: 2023-11-13T16:11:06Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source