These entries are queried from radb.net using whois, you can try my project getting these.
:AS10423 route: 69.176.128.0/19 descr: Spartan-Net descr: 3032 E. Lake Lansing Rd descr: East Lansing, MI 48823 descr: US origin: AS10423 mnt-by: MNT-SPART-1 changed: neteng [at] spartan-net.net 20171002 source: ARIN rpki-ov-state: valid route: 69.176.128.0/19 descr: Proxy-registered route object for customer 123.NET origin: AS10423 notify: noc [at] 123.net mnt-by: I123-MNT changed: joshua.hayes [at] centurylink.com 20191212 source: LEVEL3 rpki-ov-state: valid route: 72.44.96.0/19 descr: Spartan-Net descr: 3032 E. Lake Lansing Rd descr: East Lansing, MI 48823 descr: US origin: AS10423 mnt-by: MNT-SPART-1 changed: neteng [at] spartan-net.net 20171002 source: ARIN rpki-ov-state: valid route: 72.44.96.0/19 descr: ADDED FOR - AS10423 origin: AS10423 notify: noc [at] 123.net mnt-by: I123-MNT changed: rpd [at] 123.net 20191213 source: LEVEL3 rpki-ov-state: valid route6: 2604:71c0::/32 descr: Spartan-Net descr: 3032 E. Lake Lansing Rd descr: East Lansing, MI 48823 descr: US origin: AS10423 mnt-by: MNT-SPART-1 changed: neteng [at] spartan-net.net 20171006 source: ARIN rpki-ov-state: valid