netgate.ab.ua has one IP number. abs.vn, 4ez.com, ajur.cl, qybj.net, sudet.net and at least 100 other hosts point to the same IP. ab.ua is delegated to two nameservers, however one extra nameserver is listed in the zone. All of them are on different IP networks. Incoming mail for ab.ua is handled by one mailserver at ab.ua themselves. ab.ua has one IP number , but the reverse is 68-236-105-89.lviv.farlep.net.