dns6.register.com has one IP number , which also has a corresponding reverse pointer. e42.net, cuba.ky, ipxs.net, avex.net, ausi.net and at least 100 other hosts use this as a nameserver. register.com is a domain controlled by six nameservers at register.com themselves. Some of them are on the same IP network. Incoming mail for register.com is handled by two mailservers on different IP networks. register.com has one IP number. dns6.register.com is hosted on a server in United States.