These entries are queried from radb.net using whois, you can try my project getting these.
:AS63276 route: 184.171.144.0/20 descr: Champlain College origin: AS63276 mnt-by: MAINT-TVC changed: dan [at] firstlight.net 20150822 source: ALTDB rpki-ov-state: valid route: 184.171.144.0/20 origin: AS63276 descr: Champlain College 163 S Willard St. Burlington VT 05401 United States admin-c: NOC134-ARIN tech-c: NOC134-ARIN mnt-by: MNT-CHAMPL created: 2021-12-16T16:06:38Z last-modified: 2021-12-16T16:06:38Z source: ARIN rpki-ov-state: valid route: 216.93.144.0/20 descr: Champlain College origin: AS63276 mnt-by: MAINT-TVC changed: dan [at] firstlight.net 20150822 source: ALTDB rpki-ov-state: valid route: 216.93.144.0/20 origin: AS63276 descr: Champlain College 163 S Willard St. Burlington VT 05401 United States admin-c: NOC134-ARIN tech-c: NOC134-ARIN mnt-by: MNT-CHAMPL created: 2021-12-16T16:05:07Z last-modified: 2021-12-16T16:05:07Z source: ARIN rpki-ov-state: valid