These entries are queried from radb.net using whois, you can try my project getting these.
:AS45875 route: 203.176.152.0/24 descr: Proxy route for 203.176.152.0/24 origin: AS45875 remarks: This route object was created by TPG on behalf of a customer. As some of TPG upstream networks filter based on IRR objects, this route object has been created to ensure that the advertisement of this prefix is not rejected. mnt-by: MAINT-AS7545 changed: core-neteng-support [at] tpg.com.au 20191125 source: RADB last-modified: 2023-11-13T15:59:00Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source