68.173.198.in-addr.arpa is delegated to two nameservers, however four extra nameservers are listed in the zone. All nameservers are at nameservers.net having a total of eight IP numbers. Some of them are on the same IP network. cbf.org, vwh.net, toye.us, wla2.com, vwh1.net and at least 55 other hosts share nameservers with this domain. 173.198.in-addr.arpa is a domain controlled by five nameservers at ns.gin.ntt.net. Two of them are on the same IP network.