232.193.66.in-addr.arpa is a domain controlled by two nameservers at smtusa.com. They are on the same IP network. pea.com, fcpa.org, ttcfl.com, gppinc.com, smtusa.com and at least 55 other hosts share nameservers with this domain. 193.66.in-addr.arpa is delegated to three nameservers, however all three delegated nameservers are missing in the zone and two other nameservers are listed. There are two duplicated IP numbers. All of them are on the same IP network.