Don't perform WHOIS lookups for specified IPv6 range

[cinergi2]

I have a /56 IPv6 prefix from my ISP. I've noticed that AGH performs WHOIS lookups for all local clients with these IPs, presumably because it doesn't know that they are local clients (since the IPv6 addresses are public). This is unnecessary and also a privacy issue because WHOIS lookups are constantly going out for my /56 prefix.

Is there a way to define an IPv6 range that AGH should NEVER perform WHOIS queries for? I would add my entire /56 prefix. For IPv4 it is simpler, since AGH knows not to perform WHOIS queries for private IPv4 addresses. But the IPv6 addresses are all public.

Thanks.