139.151.in-addr.arpa is a domain controlled by three nameservers. Two of them are on the same IP network. oz.au, org.ar, gov.ar, com.ar, mv.net and at least 60 other hosts share nameservers with this domain. 151.in-addr.arpa is a domain controlled by seven nameservers. All of them are on different IP networks.
APNIC-AP Asia Pacific Network Information Center, Pty. Ltd. Regional Internet Registry for the Asia-Pacific Region Level 1 - 33 Park Road. Milton QLD 4064 Australia