wwe.atento.com.br has one IP number , which also has a corresponding reverse pointer. 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.