nomen.cns.vt.edu DNS trace

Root zone

These servers manage the DNS root zone

a.root-servers.net

198.41.0.4

AS397197

Anycast IP

2001:503:ba3e::2:30

AS397197

Anycast IP

b.root-servers.net

170.247.170.2

AS394353

Anycast IP

2801:1b8:10::b

AS394353

Anycast IP

c.root-servers.net

192.33.4.12

AS2149

Anycast IP

2001:500:2::c

AS2149

Anycast IP

d.root-servers.net

199.7.91.13

AS10886

Anycast IP

2001:500:2d::d

AS10886

Anycast IP

e.root-servers.net

192.203.230.10

AS21556

Anycast IP

2001:500:a8::e

AS21556

Anycast IP

f.root-servers.net

192.5.5.241

AS3557

Anycast IP

2001:500:2f::f

AS3557

Anycast IP

g.root-servers.net

192.112.36.4

AS5927

Anycast IP

2001:500:12::d0d

AS5927

Anycast IP

h.root-servers.net

198.97.190.53

AS1508

Anycast IP

2001:500:1::53

AS1508

Anycast IP

i.root-servers.net

192.36.148.17

AS29216

Anycast IP

2001:7fe::53

AS29216

Anycast IP

j.root-servers.net

192.58.128.30

AS397197

Anycast IP

2001:503:c27::2:30

AS397197

Anycast IP

k.root-servers.net

193.0.14.129

AS25152

Anycast IP

2001:7fd::1

AS25152

Anycast IP

l.root-servers.net

199.7.83.42

AS20144

Anycast IP

2001:500:9f::42

AS20144

Anycast IP

m.root-servers.net

202.12.27.33

AS7500

Anycast IP

2001:dc3::35

AS7500

Anycast IP

Inconsistent responses

We queried these DNS servers, but not all of them returned the same response. Select a group to see their response.

25 servers a.root-servers.net./198.41.0.4 b.root-servers.net./170.247.170.2 b.root-servers.net./2801:1b8:10:0:0:0:0:b c.root-servers.net./192.33.4.12 c.root-servers.net./2001:500:2:0:0:0:0:c d.root-servers.net./199.7.91.13 d.root-servers.net./2001:500:2d:0:0:0:0:d e.root-servers.net./192.203.230.10 e.root-servers.net./2001:500:a8:0:0:0:0:e f.root-servers.net./192.5.5.241 f.root-servers.net./2001:500:2f:0:0:0:0:f g.root-servers.net./192.112.36.4 g.root-servers.net./2001:500:12:0:0:0:0:d0d h.root-servers.net./198.97.190.53 h.root-servers.net./2001:500:1:0:0:0:0:53 i.root-servers.net./192.36.148.17 i.root-servers.net./2001:7fe:0:0:0:0:0:53 j.root-servers.net./192.58.128.30 j.root-servers.net./2001:503:c27:0:0:0:2:30 k.root-servers.net./193.0.14.129 k.root-servers.net./2001:7fd:0:0:0:0:0:1 l.root-servers.net./199.7.83.42 l.root-servers.net./2001:500:9f:0:0:0:0:42 m.root-servers.net./2001:dc3:0:0:0:0:0:35 m.root-servers.net./202.12.27.33

1 server (timed out) a.root-servers.net./2001:503:ba3e:0:0:0:2:30

these servers delegate to

edu.

These servers manage the edu zone

a.edu-servers.net

192.5.6.30

AS396549

Anycast IP

2001:503:a83e::2:30

AS396549

Anycast IP

b.edu-servers.net

192.33.14.30

AS396761

Anycast IP

2001:503:231d::2:30

AS396654

Anycast IP

c.edu-servers.net

192.26.92.30

AS396549

Anycast IP

2001:503:83eb::30

AS396549

Anycast IP

d.edu-servers.net

192.31.80.30

AS396549

Anycast IP

2001:500:856e::30

AS396549

Anycast IP

e.edu-servers.net

192.12.94.30

AS396549

Anycast IP

2001:502:1ca1::30

AS396549

Anycast IP

f.edu-servers.net

192.35.51.30

AS397197

Anycast IP

2001:503:d414::30

AS397197

Anycast IP

g.edu-servers.net

192.42.93.30

AS397197

Anycast IP

2001:503:eea3::30

AS397197

Anycast IP

h.edu-servers.net

192.54.112.30

AS397197

Anycast IP

2001:502:8cc::30

AS397197

Anycast IP

i.edu-servers.net

192.43.172.30

AS397197

Anycast IP

2001:503:39c1::30

AS397197

Anycast IP

j.edu-servers.net

192.48.79.30

AS396566

Anycast IP

2001:502:7094::30

AS19836

Anycast IP

k.edu-servers.net

192.52.178.30

AS396566

Anycast IP

2001:503:d2d::30

AS19836

Anycast IP

l.edu-servers.net

192.41.162.30

AS396566

Anycast IP

2001:500:d937::30

AS19836

Anycast IP

m.edu-servers.net

192.55.83.30

AS396566

Anycast IP

2001:501:b1f9::30

AS19836

Anycast IP

Inconsistent responses

We queried these DNS servers, but not all of them returned the same response. Select a group to see their response.

22 servers a.edu-servers.net./192.5.6.30 a.edu-servers.net./2001:503:a83e:0:0:0:2:30 b.edu-servers.net./192.33.14.30 b.edu-servers.net./2001:503:231d:0:0:0:2:30 c.edu-servers.net./192.26.92.30 c.edu-servers.net./2001:503:83eb:0:0:0:0:30 d.edu-servers.net./192.31.80.30 d.edu-servers.net./2001:500:856e:0:0:0:0:30 e.edu-servers.net./192.12.94.30 e.edu-servers.net./2001:502:1ca1:0:0:0:0:30 f.edu-servers.net./192.35.51.30 g.edu-servers.net./192.42.93.30 h.edu-servers.net./192.54.112.30 i.edu-servers.net./192.43.172.30 j.edu-servers.net./192.48.79.30 j.edu-servers.net./2001:502:7094:0:0:0:0:30 k.edu-servers.net./192.52.178.30 k.edu-servers.net./2001:503:d2d:0:0:0:0:30 l.edu-servers.net./192.41.162.30 l.edu-servers.net./2001:500:d937:0:0:0:0:30 m.edu-servers.net./192.55.83.30 m.edu-servers.net./2001:501:b1f9:0:0:0:0:30

4 servers (timed out) f.edu-servers.net./2001:503:d414:0:0:0:0:30 g.edu-servers.net./2001:503:eea3:0:0:0:0:30 h.edu-servers.net./2001:502:8cc:0:0:0:0:30 i.edu-servers.net./2001:503:39c1:0:0:0:0:30

these servers delegate to

vt.edu.

These servers manage the vt.edu zone

auth1.dns.cogentco.com

auth2.dns.cogentco.com

clature.cns.vt.edu

198.82.247.101