go
wwe.atento.com.br has one IP number , which also has a corresponding reverse pointer. webmail.atento.com.br point to the same IP. atento.com.br is a domain controlled by two nameservers at atento.com.br themselves. They are on the same IP network. Incoming mail for atento.com.br is handled by two mailservers also at atento.com.br. They are on the same IP network. atento.com.br has one IP number. wwe.atento.com.br is hosted on a server in Brazil.

wwe.atento.com.br
a records
 
+ 200.184.132.159 200.184.128.0/18 AS17379 webmail.atento.com.br
+ --- webmail.atento.com.br
+ --- -

atento.com.br
a records
 
+ 189.126.113.26 189.126.96.0/19 AS27715  
+ ---  
ns-soa records
ns1.atento.com.br
+ 200.184.132.140 200.184.128.0/18 AS17379 ns1.bosch-sac.com.br
+ --- ns1.bosch-sac.com.br
+ --- ns1.centralunimedbh.com.br
+ --- ns1.centralderelacionamento.com.br
+ --- ns1.centralfiat.com.br
+ --- ns1.atentonet.com.br
+ --- -
+ --- ns1.contactcenterbrasil.com.br
+ --- ns1.atentobr.com.br
+ --- ns1.clienteatento.com.br
+ --- ns1.helpsas.com.br
+ --- ns1.atento.net.br
ns records
ns1.atento.com.br
+ 200.184.132.140 200.184.128.0/18 AS17379 ns1.bosch-sac.com.br
+ --- ns1.bosch-sac.com.br
+ --- ns1.centralunimedbh.com.br
+ --- ns1.centralderelacionamento.com.br
+ --- ns1.centralfiat.com.br
+ --- ns1.atentonet.com.br
+ --- -
+ --- ns1.contactcenterbrasil.com.br
+ --- ns1.atentobr.com.br
+ --- ns1.clienteatento.com.br
+ --- ns1.helpsas.com.br
+ --- ns1.atento.net.br
ns2.atento.com.br
+ 200.184.132.141 200.184.128.0/18 AS17379 ns2.centralderelacionamento.com.br
+ --- ns2.centralderelacionamento.com.br
+ --- -
+ --- ns2.helpsas.com.br
+ --- ns2.atento.net.br
+ --- ns2.clienteatento.com.br
+ --- ns2.bosch-sac.com.br
+ --- ns2.contactcenterbrasil.com.br
+ --- ns2.atentonet.com.br
+ --- ns2.atentobr.com.br
+ --- ns2.centralunimedbh.com.br
+ --- ns2.centralfiat.com.br
mx records
brsrv04.atento.com.br
+ 200.184.132.171 200.184.128.0/18 AS17379 -
+ --- -
brsrv03.atento.com.br
+ 200.184.132.170 200.184.128.0/18 AS17379 -
+ --- mail.atento.com.br
+ --- mail.atentonet.com.br
ip numbers of host
200.184.132.159
ptrs of ip numbers
webmail.atento.com.br
wwe.atento.com.br
ip numbers using ptr to this host
200.184.132.159
hostnames sharing ip with a-records
webmail.atento.com.br