These entries are queried from radb.net using whois, you can try my project getting these.
:AS64223 route: 192.251.56.0/24 descr: Route for downstream customer Mercury Network origin: AS64223 mnt-by: MAINT-AS26554 changed: noc [at] ussignal.com 20151215 #21:48:58Z source: RADB last-modified: 2023-11-13T15:48:29Z rpki-ov-state: valid route: 192.251.56.0/24 descr: MITCON, LLC descr: 205 POST ST descr: MIDLAND, MI 48640 descr: US origin: AS64223 mnt-by: MNT-ML-627 changed: help [at] mitcon.org 20151216 source: ARIN rpki-ov-state: valid route: 192.251.56.0/24 descr: ADDED FOR - AS64223 origin: AS64223 notify: noc [at] 123.net mnt-by: I123-MNT changed: rpd [at] 123.net 20191213 source: LEVEL3 rpki-ov-state: valid route: 209.94.85.0/24 descr: ADDED FOR - AS64223 origin: AS64223 notify: noc [at] 123.net mnt-by: I123-MNT changed: rpd [at] 123.net 20191213 source: LEVEL3 rpki-ov-state: valid route: 209.94.85.0/24 descr: MITCON, LLC descr: 205 POST ST descr: MIDLAND, MI 48640 descr: US origin: AS64223 mnt-by: MNT-ML-627 changed: help [at] mitcon.org 20190224 source: ARIN rpki-ov-state: valid route6: 2620:70:4000::/48 descr: MITCON, LLC descr: 205 POST ST descr: MIDLAND, MI 48640 descr: US origin: AS64223 mnt-by: MNT-ML-627 changed: help [at] mitcon.org 20190224 source: ARIN rpki-ov-state: valid