nic.xfinity name server dnsb.nic.xfinity.
nic.xfinity name server dnsa.nic.xfinity.
nic.xfinity name server dnsd.nic.xfinity.
nic.xfinity name server dns4.nic.xfinity.
nic.xfinity name server dns1.nic.xfinity.
nic.xfinity name server dnsc.nic.xfinity.
nic.xfinity name server dns3.nic.xfinity.
nic.xfinity name server dns2.nic.xfinity.
