66.220.153.72


DNS delegation of 66.220.153.72 updated: May 18, 2013 7:04:05 PM

Delegation

stepqueryauthservers
172.153.220.66.in-addr.arpa..(l,b,d,j,e,h,a,i,k,g,m,f,c).root-servers.net.
272.153.220.66.in-addr.arpa.in-addr.arpa.(c,b,f,e,a,d).in-addr-servers.arpa.
372.153.220.66.in-addr.arpa.66.in-addr.arpa.(r,w,t,u,y,x,z,v).arin.net.
472.153.220.66.in-addr.arpa.153.220.66.in-addr.arpa.(b,a).ns.facebook.com.
We pick l.root-servers.net, one of the 13 root servers (1), and ask it about 72.153.220.66.in-addr.arpa and learn that in-addr.arpa is delegated to six name servers (2), so we ask c.in-addr-servers.arpa where we learn that 66.in-addr.arpa is delegated to eight name servers, including r.arin.net (3), so we ask that one and learn that 153.220.66.in-addr.arpa is delegated to two name servers (4), so we ask b.ns.facebook.com and get the following answer:

Authoritative answer

ANSWER for 72.153.220.66.in-addr.arpa.
72.153.220.66.in-addr.arpa.7200 PTR star-slb-10-03-ash2.facebook.com.
AUTHORITATIVE for 72.153.220.66.in-addr.arpa.
153.220.66.in-addr.arpa.172800 NS b.ns.facebook.com. 153.220.66.in-addr.arpa use b.ns.facebook.com as name server.
172800 NS a.ns.facebook.com. 153.220.66.in-addr.arpa use a.ns.facebook.com as name server.
ADDITIONAL for 72.153.220.66.in-addr.arpa.
a.ns.facebook.com.172800 A69.171.239.12
b.ns.facebook.com.172800 A69.171.255.12
72. net. com. arpa. 153.72. arin.net. z.arin.net. u.arin.net. w.arin.net. t.arin.net. v.arin.net. y.arin.net. r.arin.net. x.arin.net. 220.153.72. in-addr.arpa. facebook.com. 66.220.153.72. 66.in-addr.arpa. ns.facebook.com. root-servers.net. a.ns.facebook.com. b.ns.facebook.com. m.root-servers.net. a.root-servers.net. j.root-servers.net. h.root-servers.net. d.root-servers.net. i.root-servers.net. l.root-servers.net. k.root-servers.net. g.root-servers.net. f.root-servers.net. c.root-servers.net. b.root-servers.net. e.root-servers.net. 220.66.in-addr.arpa. in-addr-servers.arpa. b.in-addr-servers.arpa. e.in-addr-servers.arpa. c.in-addr-servers.arpa. d.in-addr-servers.arpa. f.in-addr-servers.arpa. a.in-addr-servers.arpa. 153.220.66.in-addr.arpa. 72.153.220.66.in-addr.arpa. star-slb-10-03-ash2.facebook.com.
whois 72
whois net
whois com
whois arpa
whois 153.72
whois arin.net
whois in-addr.arpa
whois facebook.com
whois root-servers.net
whois in-addr-servers.arpa

whois 153.72
deep analysis of: 66.220.153.72, 153.72
domain info api 153.72

RBL listing of 66.220.153.72
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