These entries are queried from radb.net using whois, you can try my project getting these.
:AS22931 route: 72.10.176.0/20 descr: ARIN Assigned Block origin: AS22931 mnt-by: MNT-HCG-38 notify: abuse [at] huronconsultinggroup.com changed: evazquez [at] hcg.com 20141202 source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 72.10.176.0/22 descr: DC1 Block origin: AS22931 mnt-by: MNT-HCG-38 notify: abuse [at] huronconsultinggroup.com changed: evazquez [at] hcg.com 20141202 source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 72.10.180.0/22 descr: DC2 Block origin: AS22931 mnt-by: MNT-HCG-38 notify: abuse [at] huronconsultinggroup.com changed: evazquez [at] hcg.com 20141202 source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 72.10.184.0/23 descr: London Block origin: AS22931 mnt-by: MNT-HCG-38 notify: abuse [at] huronconsultinggroup.com changed: evazquez [at] hcg.com 20141202 source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 72.10.184.0/23 descr: Huron Consulting origin: AS22931 mnt-by: COLT-UK created: 2011-03-16T10:19:11Z last-modified: 2018-09-04T16:53:29Z source: RIPE-NONAUTH remarks: **************************** remarks: * THIS OBJECT IS MODIFIED remarks: * Please note that all data that is generally regarded as personal remarks: * data has been removed from this object. remarks: * To view the original object, please query the RIPE Database at: remarks: * http://www.ripe.net/whois remarks: **************************** rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 72.10.186.0/23 descr: Boulder Block origin: AS22931 mnt-by: MNT-HCG-38 notify: abuse [at] huronconsultinggroup.com changed: evazquez [at] hcg.com 20141202 source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 72.10.188.0/22 descr: Chicago Block origin: AS22931 mnt-by: MNT-HCG-38 notify: abuse [at] huronconsultinggroup.com changed: evazquez [at] hcg.com 20141202 source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source