These entries are queried from radb.net using whois, you can try my project getting these.
:AS398451 route: 137.112.0.0/16 origin: AS398451 mnt-by: MNT-RIT-4 descr: 5500 Wabash Avenue Terre Haute IN 47803 United States tech-c: HAMLI-ARIN tech-c: HAZAR22-ARIN admin-c: HAMLI-ARIN source: ARIN created: 2020-08-28T12:49:31Z last-modified: 2020-08-28T12:49:31Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 137.112.0.0/16 origin: AS398451 descr: Rose-Hulman Institute of Technology Indiana Higher Education Telecommunication System I-Light remarks: Rose-Hulman Institute of Technology remarks: contact noc [at] ilight.net if you have questions about this object. remarks: abuse contact is abuse [at] indiana.edu. mnt-by: MAINT-IU changed: slcarver [at] iu.edu 20200713 #15:03:37Z source: RADB last-modified: 2023-11-13T16:01:12Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2620:e7::/48 origin: AS398451 mnt-by: MNT-RIT-4 descr: 5500 Wabash Avenue Terre Haute IN 47803 United States tech-c: HAMLI-ARIN tech-c: HAZAR22-ARIN admin-c: HAMLI-ARIN source: ARIN created: 2020-08-28T12:50:16Z last-modified: 2020-08-28T12:50:16Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2620:e7::/48 origin: AS398451 descr: Rose Hulman Institute of Technology Indiana Higher Education Telecommunication System I-Light remarks: I-Light remarks: contact noc [at] ilight.net if you have questions about this object. remarks: abuse contact is abuse [at] indiana.edu. mnt-by: MAINT-IU changed: slcarver [at] iu.edu 20200915 #13:55:53Z source: RADB last-modified: 2023-11-13T16:01:38Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source