dns-02.ns.aol.com has one IP number , which also has a corresponding reverse pointer. aol.in, aol.nl, cs.com, aol.fr, aol.de and at least 100 other hosts use this as a nameserver. ns.aol.com is a domain controlled by four nameservers at ns.aol.com themselves. All of them are on different IP networks. dns-02.ns.aol.com is hosted on a server in United States.