root@vici:~# nslookup us.archive.ubuntu.com
Server:         192.168.174.2
Address:        192.168.174.2#53

Non-authoritative answer:
Name:   us.archive.ubuntu.com
Address: 91.189.88.46
Name:   us.archive.ubuntu.com
Address: 91.189.88.45
Name:   us.archive.ubuntu.com
Address: 91.189.88.30
Name:   us.archive.ubuntu.com
Address: 91.189.88.31
Name:   us.archive.ubuntu.com
Address: 91.189.92.169
Name:   us.archive.ubuntu.com
Address: 91.189.92.170
Name:   us.archive.ubuntu.com
Address: 91.189.92.171
Name:   us.archive.ubuntu.com
Address: 91.189.92.172
Name:   us.archive.ubuntu.com
Address: 91.189.88.40