174.33.129.in-addr.arpa is delegated to two nameservers, however both delegated nameservers are missing in the zone. All nameservers are at tor.usf.ibm.com. They are on the same IP network. cantire.ca, uptime.aero, ecomcards.com, ctcpartner.com, canadiantire.ca and at least 16 other hosts share nameservers with this domain. 33.129.in-addr.arpa is delegated to four nameservers, however two extra nameservers are listed in the zone. There are two duplicated IP numbers. Some of them are on the same IP network.