These entries are queried from radb.net using whois, you can try my project getting these.
:AS55146 route: 198.17.255.0/24 descr: Frontier Communications (ARIN OrgID: FRTR) origin: AS55146 remarks: remarks: -- Operational Contacts -- remarks: Abuse / UCE: abuse [at] support.ftr.com remarks: NOC / Maint: support [at] support.ftr.com remarks: BGP Routing: bgp [at] support.ftr.com remarks: remarks: Proxy-registered route object remarks: for Frontier BGP customer remarks: mnt-by: MAINT-AS5650 changed: rickm [at] ftr.com 20160512 source: RADB last-modified: 2024-02-15T15:38:55Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source