; <<>> DiG 9 <<>> @8.8.8.8 bbc.co.uk A
 ; (1 server found)
 ;; global options: +cmd
 .          36611   IN  NS  a.root-servers.net.
 .          36611   IN  NS  b.root-servers.net.
 .          36611   IN  NS  c.root-servers.net.
 .          36611   IN  NS  d.root-servers.net.
 .          36611   IN  NS  e.root-servers.net.
 .          36611   IN  NS  f.root-servers.net.
 .          36611   IN  NS  g.root-servers.net.
 .          36611   IN  NS  h.root-servers.net.
 .          36611   IN  NS  i.root-servers.net.
 .          36611   IN  NS  j.root-servers.net.
 .          36611   IN  NS  k.root-servers.net.
 .          36611   IN  NS  l.root-servers.net.
 .          36611   IN  NS  m.root-servers.net.
 ;; Received 228 bytes from 8.8.8.8#53(8.8.8.8) in 8 ms

 uk.            172800  IN  NS  dns4.nic.uk.
 uk.            172800  IN  NS  dns2.nic.uk.
 uk.            172800  IN  NS  nsc.nic.uk.
 uk.            172800  IN  NS  nsa.nic.uk.
 uk.            172800  IN  NS  nsd.nic.uk.
 uk.            172800  IN  NS  nsb.nic.uk.
 uk.            172800  IN  NS  dns1.nic.uk.
 uk.            172800  IN  NS  dns3.nic.uk.
 ;; Received 447 bytes from 192.33.4.12#53(192.33.4.12) in 7 ms

 bbc.co.uk.     172800  IN  NS  ns3.bbc.co.uk.
 bbc.co.uk.     172800  IN  NS  ns3.bbc.net.uk.
 bbc.co.uk.     172800  IN  NS  ns4.bbc.co.uk.
 bbc.co.uk.     172800  IN  NS  ns4.bbc.net.uk.
 ;; Received 195 bytes from 43.230.48.1#53(43.230.48.1) in 12 ms

 bbc.co.uk.     300 IN  A   151.101.64.81
 bbc.co.uk.     300 IN  A   151.101.0.81
 bbc.co.uk.     300 IN  A   151.101.192.81
 bbc.co.uk.     300 IN  A   151.101.128.81
 bbc.co.uk.     900 IN  NS  ns3.bbc.co.uk.
 bbc.co.uk.     900 IN  NS  ns4.bbc.co.uk.
 bbc.co.uk.     900 IN  NS  ns3.bbc.net.uk.
 bbc.co.uk.     900 IN  NS  ns4.bbc.net.uk.
 ;; Received 171 bytes from 156.154.66.17#53(156.154.66.17) in 5 ms

dig NS bbc.co.uk @nsa.nic.uk