facebook.mobi

• Delegation
• Authoritative answer
• Related hostnames

Delegation

Authoritative answer

ANSWER for facebook.mobi.
facebook.mobi.	3600	SOA	a.ns.facebook.com. dns.facebook.com. ( 2012092900 7200 1800 604800 3600 )
	172800	NS	ns3.facebook.com.
	172800	NS	ns4.facebook.com.
	172800	NS	ns5.facebook.com.
	172800	NS	a.ns.facebook.com.
	172800	NS	b.ns.facebook.com.
	60	A	69.63.176.67
ADDITIONAL for facebook.mobi.
a.ns.facebook.com.	172800	A	69.171.239.12
b.ns.facebook.com.	172800	A	69.171.255.12
ns3.facebook.com.	3600	A	66.220.151.20
ns4.facebook.com.	3600	A	69.171.245.32
ns5.facebook.com.	3600	A	66.220.145.65

Related hostnames

Facebookdownloader.com, facebook.nl, somethingtoputhere.com, facebook.at, facebook.fr and at least 144 other hosts share name servers with this domain. Friendfed.com, whyfacebook.com, freindfeed.com, facebok.com, friendfeedapi.com and at least 89 other hosts share name servers under another name with this domain. Www.facebook.mobi are hosts under this domain. Facebook.tj, facebook.cm, facebook.tel, facebook.ws, facebook.mx and at least 145 other hosts are similar domain names.

Also check www.facebook.mobi.

The name server b.ns.facebook.com

There are more than two hundred domains that use the name server b.ns.facebook.com.

• Most of those use the two name servers a and b.ns.facebook.com together, hereafter referred to as "name server group 1", (example: 235.171.69.in-addr.arpa, friendfeed-api.com and 229.171.69.in-addr.arpa ).
• One quarter of them point only to the IP number 173.252.110.27 (example: facebook.co, facebook.bs and facebooklogin.com ).
• Six percent of them 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 2", (example: facebook.net, 79.13.31.in-addr.arpa and zuckerberg.com ).
• Six of them point only to the IP number 69.171.233.18 (example: friendfeed-media.com and ffbymail.com ).

The name server a.ns.facebook.com

There are more than two hundred domains that use the name server a.ns.facebook.com.

• Most of those use name server group 1 (example: facebook.be, 78.252.173.in-addr.arpa and 91.252.173.in-addr.arpa ).
• A third of them point only to the IP number 173.252.110.27 (example: fb.com, fbookmobile.com and httpwwwfacebook.com ).
• Seven percent of them use name server group 2 (example: 78.13.31.in-addr.arpa, 72.13.31.in-addr.arpa and facebook-survey.com ).
• Six of them use the two mail servers mxa-00082601 and mxb-00082601.gslb.pphosted.com together, hereafter referred to as "mail server group 1", (example: tfbnw.com ).

The two name servers a and b.ns.facebook.com together

There are more than two hundred domains that use name server group 1.

• A third of those point only to the IP number 173.252.110.27 (example: faceboot.com, facebooksupplierstest.com and oglint.org ).
• Six of them use only the mail server msgin.t.facebook.com (example: facebook.com and facebookmx.com ).
• Six of them use mail server group 1.
• Six of them use only the mail server mx.snc1.tfbnw.net.

The name server ns3.facebook.com

There are about twenty domains that use the name server ns3.facebook.com.

• All of those use name server group 2 (example: 73.13.31.in-addr.arpa, fb.me and 76.13.31.in-addr.arpa ).
• Seven of them point only to the IP number 69.171.233.18 (example: friendfeedmedia.com, frendfeed.com and friendfeed-inc.com ).

The name server ns5.facebook.com

There are about twenty domains that use the name server ns5.facebook.com.

• All of those use name server group 2 (example: 69.13.31.in-addr.arpa, 145.220.66.in-addr.arpa and 24.13.31.in-addr.arpa ).
• Seven of them point only to the IP number 69.171.233.18.

The name server ns4.facebook.com

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

• All of those use name server group 2.
• Seven of them point only to the IP number 69.171.233.18.

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 2 point only to the IP number 69.171.233.18.

The IP number 66.220.151.20

All of the eight host names that point to the IP number 66.220.151.20 point only to that ip number (example: ns0.facebook.com, iamtoodumbtosetupdns.20.151.220.66.hitfarm.com and ns3.facebook.com ).

The IP number 69.171.255.12

All of the six host names that point to the IP number 69.171.255.12 point only to that ip number (example: b.ns.fbcdn.net, b.ns.thefacebook.com and b.ns.tfbnw.net ).