ns3.facebook.com

• Delegation
• Authoritative answer
• Related hostnames

Delegation

Authoritative answer

ANSWER for ns3.facebook.com.
ns3.facebook.com.	3600	A	66.220.151.20
AUTHORITATIVE for ns3.facebook.com.
facebook.com.	172800	NS	a.ns.facebook.com.
	172800	NS	b.ns.facebook.com.
ADDITIONAL for ns3.facebook.com.
a.ns.facebook.com.	172800	A	69.171.239.12
b.ns.facebook.com.	172800	A	69.171.255.12

Related hostnames

Ns3.facebook.com has one IP number (66.220.151.20), which also has a corresponding reverse pointer.

Ns0.facebook.com cnames to this hostname. Iamtoodumbtosetupdns.20.151.220.66.hitfarm.com point to the same IP. Friendfeedmedia.com, friendfeedapi.com, somethingtoputhere.com, fb.me, facebook.mobi and at least 16 other hosts use ns3.facebook.com as a name server. Zuckerberg.com, friendfed.com, ff.im, frendfeed.com, friendfeed-inc.com and at least eleven other hosts use ns3.facebook.com as a name server under another name.

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

Ns3.facebook.com is hosted on a server in Menlo Park, CA, United States.

The name server ns3.facebook.com

There are about twenty domains that use the name server ns3.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: freindfeed.com, 76.13.31.in-addr.arpa and 24.13.31.in-addr.arpa ).
• Seven of them point to the IP number 69.171.233.18.

The IP number 66.220.151.20

All of the four host names that point to the IP number 66.220.151.20 point only to that ip number (example: *.iamtoodumbtosetupdns.20.151.220.66.hitfarm.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.