These entries are queried from radb.net using whois, you can try my project getting these.
:AS3944 route: 153.16.0.0/16 descr: Partan Lab 3 tech-c: AP25 origin: AS3944 remarks: this is non-portable space, no exceptions notify: asp+vdb [at] partan.com mnt-by: MAINT-PARTAN changed: asp [at] partan.com 20021207 source: NTTCOM rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 192.124.101.0/24 descr: Partan Lab 4 tech-c: AP25 origin: AS3944 remarks: this is non-portable space, no exceptions notify: asp+vdb [at] partan.com mnt-by: MAINT-PARTAN changed: asp [at] partan.com 20021207 source: NTTCOM rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 198.6.255.0/24 descr: Partan lab tech-c: AP25 origin: AS3944 remarks: this is non-portable space, no exceptions notify: asp+vdb [at] partan.com mnt-by: MAINT-PARTAN changed: asp [at] partan.com 20000222 source: NTTCOM rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 198.32.7.0/24 descr: Partan Lab 2 tech-c: AP25 origin: AS3944 remarks: this is non-portable space, no exceptions notify: asp+vdb [at] partan.com mnt-by: MAINT-PARTAN changed: asp [at] partan.com 20011211 source: NTTCOM rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source