outlook.ms-acdc.office.com 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

AS396661

Anycast IP

2001:503:c27::2:30

AS396661

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

all servers delegate to

com.

These servers manage the com zone

a.gtld-servers.net

192.5.6.30

AS396555

Anycast IP

2001:503:a83e::2:30

AS396555

Anycast IP

b.gtld-servers.net

192.33.14.30

AS396661

Anycast IP

2001:503:231d::2:30

AS396654

Anycast IP

c.gtld-servers.net

192.26.92.30

AS396555

Anycast IP

2001:503:83eb::30

AS396555

Anycast IP

d.gtld-servers.net

192.31.80.30

AS396555

Anycast IP

2001:500:856e::30

AS396555

Anycast IP

e.gtld-servers.net

192.12.94.30

AS396555

Anycast IP

2001:502:1ca1::30

AS396555

Anycast IP

f.gtld-servers.net

192.35.51.30

AS397197

Anycast IP

2001:503:d414::30

AS397197

Anycast IP

g.gtld-servers.net

192.42.93.30

AS397197

Anycast IP

2001:503:eea3::30

AS397197

Anycast IP

h.gtld-servers.net

192.54.112.30

AS397197

Anycast IP

2001:502:8cc::30

AS397197

Anycast IP

i.gtld-servers.net

192.43.172.30

AS397197

Anycast IP

2001:503:39c1::30

AS397197

Anycast IP

j.gtld-servers.net

192.48.79.30

AS396566

Anycast IP

2001:502:7094::30

AS19836

Anycast IP

k.gtld-servers.net

192.52.178.30

AS396566

Anycast IP

2001:503:d2d::30

AS19836

Anycast IP

l.gtld-servers.net

192.41.162.30

AS396566

Anycast IP

2001:500:d937::30

AS19836

Anycast IP

m.gtld-servers.net

192.55.83.30

AS396566

Anycast IP

2001:501:b1f9::30

AS19836

Anycast IP

all servers delegate to

office.com.

These servers manage the office.com zone

ns1-05.azure-dns.com

13.107.236.5

AS8075

Anycast IP

2603:1061:0:700::5

AS8075

Anycast IP

ns2-05.azure-dns.net

ns3-05.azure-dns.org

ns4-05.azure-dns.info

all servers delegate to

ms-acdc.office.com.

These servers manage the ms-acdc.office.com zone

ns1-ms-acdc.office.com

ns2-ms-acdc.office.com

ns3-ms-acdc.office.com

ns4-ms-acdc.office.com

Inconsistent responses

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

3 servers ns1-ms-acdc.office.com./13.107.244.2 ns2-ms-acdc.office.com./208.84.4.2 ns3-ms-acdc.office.com./150.171.254.2

1 server ns4-ms-acdc.office.com./150.171.0.2

These servers claim authority over outlook.ms-acdc.office.com and returned these records

outlook.ms-acdc.office.com CNAME FRA-efz.ms-acdc.office.com

This server claims authority over outlook.ms-acdc.office.com and returned these records

outlook.ms-acdc.office.com CNAME HHN-efz.ms-acdc.office.com