These entries are queried from radb.net using whois, you can try my project getting these.
:AS19217 route: 168.91.0.0/21 descr: Ivy Tech Community College of Indiana origin: AS19217 remarks: contact noc [at] ilight.net if you have questions. remarks: abuse contact is abuse [at] lists.ivytech.edu mnt-by: MAINT-IU changed: wtjohnso [at] globalnoc.iu.edu 20180525 #13:35:37Z source: RADB last-modified: 2023-11-13T15:53:43Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source