Disabling NAT on E4200v2 doesn't allow internally assigned IP addresses to be public facing.

I've assigned a private IP range for my internal network. I disabled NAT and have the DHCP configured for the public IP range I intend to use. When I perform a public IP check on a client though, the IP is still the WAN IP, instead of their internal public IP address. On top of that, a whois on the IP doesn't point to me.

Is there something I'm missing here? I did the change yesterday. Is this like DNS where it just takes time for the systems to catch up?

Thanks!