This AS is not currently used to announce prefixes in the global routing table, nor is it used as a visible transit AS.
whois: 402603
IANA has recorded AS20297 as originally allocated by
/usr/bin/whois -h jwhois.apnic.netr "AS20297\n % Joint Whois - whois.lacnic.net
% This server accepts single ASN, IPv4 or IPv6 queries
Query rate limit exceeded