An AAAA record is an IP address in the newly launched IPv6 format and it consists of 8 groups of hexadecimal numbers, in contrast to the IPv4 IPs, which include 4 sets of numbers between 1 and 255. A good example of an IPv6 address is 3014:0d43:23a3:2354:1320:8f3b:2635:3254 and in this format the total number of IPs that can be created is many times greater than the number of the IPv4 addresses. Every domain name has its web hosting server IP address as a record and in essence, this record instructs the domain where the site for it is. Depending on the system that the service provider uses, the record will be called A (IPv4) or AAAA (IPv6). Changing this record will allow you to host your Internet site with one provider and your emails with a different one, so if you choose to use this kind of redirection to forward a domain name to a server that uses an IPv6 address, you will have to create an AAAA record for it.