ns1.zonasa.com has one IP number. 2047.fm, s823.com, okic.com, sktoy.com, w-n-p.com and at least 85 other hosts use this as a nameserver. zonasa.com is delegated to four nameservers, however all four delegated nameservers are missing in the zone. All nameservers are at zonasa.com themselves. All of them are on the same IP network. ns1.zonasa.com is hosted on a server in Hong Kong.