in-addr delegation

[Cardinal Christopher]

If I am the authority for an entire class B network:

	zone "226.165.in-addr.arpa" {
        		type master;
        		file "rev/db.2.rev";
	};

..can I also be a slave for a subnet of that network:

	zone "64.226.165.in-addr.arpa" {
        		type slave;
        		file "secondary/db.64.226.165.sec";
        		masters {
                		165.226.64.100;
        		};
	};

I think I can, I just want to be sure that named won't complain. Thanks.

Chris