principal.uson.mx has one IP number , which also has a corresponding reverse pointer. ww2.uson.mx, www.uson.mx, mie.uson.mx, curso.uson.mx, movil.uson.mx and at least seven other hosts point to the same IP. uson.mx is a domain controlled by three nameservers. Two of them are on the same IP network. Incoming mail for uson.mx is handled by three mailservers at uson.mx themselves. All of them are on the same IP network. uson.mx has five IP numbers. Some of them are on the same IP network. principal.uson.mx is hosted on a server in Mexico.