66.220.152.20


DNS delegation of 66.220.152.20 updated: May 24, 2013 7:46:03 PM

Delegation

stepqueryauthservers
120.152.220.66.in-addr.arpa..(g,d,h,c,k,f,a,j,e,i,b,l,m).root-servers.net.
220.152.220.66.in-addr.arpa.in-addr.arpa.(a,d,e,f,c,b).in-addr-servers.arpa.
320.152.220.66.in-addr.arpa.66.in-addr.arpa.(r,v,z,x,w,y,u,t).arin.net.
420.152.220.66.in-addr.arpa.152.220.66.in-addr.arpa.(a,b).ns.facebook.com.
We pick g.root-servers.net, one of the 13 root servers (1), and ask it about 20.152.220.66.in-addr.arpa and learn that in-addr.arpa is delegated to six name servers (2), so we ask a.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 152.220.66.in-addr.arpa is delegated to two name servers (4), so we ask a.ns.facebook.com and get the following answer:

Authoritative answer

ANSWER for 20.152.220.66.in-addr.arpa.
20.152.220.66.in-addr.arpa.7200 PTR star-ecmp-09-frc1.facebook.com.
AUTHORITATIVE for 20.152.220.66.in-addr.arpa.
152.220.66.in-addr.arpa.172800 NS b.ns.facebook.com. 152.220.66.in-addr.arpa use b.ns.facebook.com as name server.
172800 NS a.ns.facebook.com. 152.220.66.in-addr.arpa use a.ns.facebook.com as name server.
ADDITIONAL for 20.152.220.66.in-addr.arpa.
a.ns.facebook.com.172800 A69.171.239.12
b.ns.facebook.com.172800 A69.171.255.12
20. net. com. arpa. 152.20. arin.net. 220.152.20. z.arin.net. u.arin.net. w.arin.net. t.arin.net. v.arin.net. y.arin.net. r.arin.net. x.arin.net. in-addr.arpa. facebook.com. 66.220.152.20. 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. 152.220.66.in-addr.arpa. 20.152.220.66.in-addr.arpa. star-ecmp-09-frc1.facebook.com.
whois 20
whois net
whois com
whois arpa
whois 152.20
whois arin.net
whois in-addr.arpa
whois facebook.com
whois root-servers.net
whois in-addr-servers.arpa

whois 152.20
deep analysis of: 66.220.152.20, 152.20
domain info api 152.20

RBL listing of 66.220.152.20
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