ns4.facebook.com

• Delegation
• Authoritative answer
• Related hostnames

Delegation

Authoritative answer

ANSWER for ns4.facebook.com.
ns4.facebook.com.	3600	A	69.171.245.32
AUTHORITATIVE for ns4.facebook.com.
facebook.com.	172800	NS	a.ns.facebook.com.
	172800	NS	b.ns.facebook.com.
ADDITIONAL for ns4.facebook.com.
a.ns.facebook.com.	172800	A	69.171.239.12
b.ns.facebook.com.	172800	A	69.171.255.12

Related hostnames

Ns4.facebook.com has one IP number (69.171.245.32), which also has a corresponding reverse pointer.

Ns4.facebook.co point to the same IP. Facebook.mobi, facebook.net, friendfeedmedia.com, frendfeed.com, zuckerberg.com and at least 16 other hosts use ns4.facebook.com as a name server.

Also check www.facebook.com and facebook.com.

Ns4.facebook.com is hosted on a server in Palo Alto, CA, United States.

The name server ns4.facebook.com

There are about twenty domains that use the name server ns4.facebook.com.

• All of those use the five name servers ns3.facebook.com, ns4.facebook.com, ns5.facebook.com, a.ns.facebook.com and b.ns.facebook.com together, hereafter referred to as "name server group 1", (example: friendfeedapi.com, freindfeed.com and fb.me ).
• Seven of them point to the IP number 69.171.233.18 (example: ff.im, friendfed.com and friendfeed-inc.com ).

The five name servers ns3.facebook.com, ns4.facebook.com, ns5.facebook.com, a.ns.facebook.com and b.…

Seven of the about twenty domains that use name server group 1 point only to the IP number 69.171.233.18.