@ IN NS 216.104.158.222 @ IN NS 216.104.128.37 @ IN NS 216.104.128.38
Specifying IP's for NS'es is illegal - NS'es should be hostnames - themselves posessing A or AAAA records (for the interest of quick lookup times these
Note: $ host -t ns wa4phy.net wa4phy.net name server 216.104.128.37.wa4phy.net. wa4phy.net name server 216.104.128.38.wa4phy.net. wa4phy.net name server 216.104.158.222.wa4phy.net.
Probably not what you wanted ;) Cheers, MaZe.