These entries are queried from radb.net using whois, you can try my project getting these.
:AS19044 route: 199.33.248.0/24 descr: Proxy-registered route object origin: AS19044 remarks: Proxy Registered by ARP Networks, Inc. mnt-by: MAINT-ARPNET changed: ip-admin [at] arpnetworks.com 20210717 source: ALTDB rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 199.33.248.0/24 descr: The Inner Net origin: AS19044 remarks: abuse to abuse [at] inner.net notify: noc+rr [at] inner.net mnt-by: MAINT-AS19044 changed: cmetz [at] lore.net 20041117 source: NTTCOM rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 199.33.248.0/24 descr: PROXY REGISTRATION FOR HOSTIGATION origin: AS19044 mnt-by: MAINT-AS8100 changed: kate [at] quadranet.com 20131112 #07:33:48Z source: RADB last-modified: 2023-11-13T15:47:05Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source