20


DNS delegation of 20 updated: May 24, 2013 1:45:28 AM

Delegation

stepqueryauthservers
120.in-addr.arpa..(m,i,d,g,j,a,l,e,k,f,c,b,h).root-servers.net.
220.in-addr.arpa.in-addr.arpa.(f,c,e,a,d,b).in-addr-servers.arpa.
320.in-addr.arpa.20.in-addr.arpa.palladium.csc.com. oxygen.amer.csc.com.
We pick m.root-servers.net, one of the 13 root servers (1), and ask it about 20.in-addr.arpa and learn that in-addr.arpa is delegated to six name servers (2), so we ask f.in-addr-servers.arpa where we learn that 20.in-addr.arpa is delegated to two name servers, including palladium.csc.com (3), so we ask that one and get the following answer:

Authoritative answer

20. net. com. arpa. csc.com. in-addr.arpa. amer.csc.com. 20.in-addr.arpa. root-servers.net. palladium.csc.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. oxygen.amer.csc.com. 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.
whois 20
whois net
whois com
whois arpa
whois csc.com
whois in-addr.arpa
whois root-servers.net
whois in-addr-servers.arpa

whois 20
deep analysis of: 20
domain info api 20

RBL listing of 20
mnw
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