These entries are queried from radb.net using whois, you can try my project getting these.
:AS26192 route: 208.87.140.0/22 descr: Impac Mortgage origin: AS26192 mnt-by: MAINT-AS5693 changed: neteng [at] latisys.com 20161207 #23:54:52Z source: RADB last-modified: 2023-11-13T15:50:11Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source