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optus.net is a domain controlled by two nameservers at optus.net themselves. They are on different IP networks. Incoming mail for optus.net is handled by one mailserver at optusnet.com.au. optus.net has one IP number , but the reverse is www.optusnet.com.au. mpx.com.au, optusnet.com.au and microplex.com.au point to the same IP and also shares mailservers. optusnet.com, www.optus.net, excite.com.au, www.mpx.com.au, optusonline.net and at least two other hosts point to the same IP. optuszoo.com, optuscsr.com, optuscsr2.com, optuszoo.com.au, tandemadvice.com and at least one other host share nameservers with this domain. pts.optusnet.com.au, mail.optusnet.com.au, staff.optusnet.com.au, sheriff.optusnet.com.au, shell01.syd.optusnet.com.au and at least one other host share mailservers with this domain. ns1.optus.net, www.optus.net, ns2.optus.net, dns1.optus.net, audns.optus.net and at least two other hosts are subdomains to this hostname. optus.net is hosted on a server in Australia.

optus.net
a records
 
+ 211.29.132.105 211.29.128.0/19 AS4804 www.optusnet.com.au
+ --- www.optusnet.com.au
ns-soa records
ns1.optusnet.com.au
+ 203.2.75.2 203.2.75.0/24 AS4804 -
+ --- -
ns records
ns1.optus.net
+ 211.29.133.110 211.29.128.0/19 AS4804 -
+ --- -
ns2.optus.net
+ 211.31.132.21 211.31.128.0/19 AS4804 -
mx records
extmail.optusnet.com.au
+ 211.29.133.14 211.29.128.0/19 AS4804 -
+ --- -

net
ns-soa records
a.gtld-servers.net
+ 192.5.6.30 192.5.6.0/24 AS36625 -
+ --- -
ns records
a.gtld-servers.net
+ 192.5.6.30 192.5.6.0/24 AS36625 -
+ --- -
b.gtld-servers.net
+ 192.33.14.30 192.33.14.0/24 AS26415 -
c.gtld-servers.net
+ 192.26.92.30 192.26.92.0/24 AS36625 -
d.gtld-servers.net
+ 192.31.80.30 192.31.80.0/24 AS36617 -
e.gtld-servers.net
+ 192.12.94.30 192.12.94.0/24 AS36629 -
f.gtld-servers.net
+ 192.35.51.30 192.35.51.0/24 AS36620 -
g.gtld-servers.net
+ 192.42.93.30 192.42.93.0/24 AS36624 -
h.gtld-servers.net
+ 192.54.112.30 192.54.112.0/24 AS36623 -
i.gtld-servers.net
+ 192.43.172.30 192.43.172.0/24 AS36625 -
j.gtld-servers.net
+ 192.48.79.30 192.48.79.0/24 AS36626 -
k.gtld-servers.net
+ 192.52.178.30 192.52.178.0/24 AS36622 -
l.gtld-servers.net
+ 192.41.162.30 192.41.162.0/24 AS36628 -
m.gtld-servers.net
+ 192.55.83.30 192.55.83.0/24 AS36618 -
ip numbers of host
211.29.132.105
ptrs of ip numbers
www.optusnet.com.au
hostnames sharing ip with a-records
excite.com.au
microplex.com.au
mpx.com.au
optusnet.com
optusnet.com.au
optusonline.net
www.mpx.com.au
www.optus.net
www.optusnet.com
www.optusnet.com.au
domains using this as mailserver under another name
laggy.com
nameservers used by this domain
ns1.optus.net
ns2.optus.net
domains sharing nameservers
ipphone.optus.com.au
optuscsr.com
optuscsr2.com
optuszoo.com
optuszoo.com.au
tandemadvice.com
ip numbers of nameservers
211.29.133.110
211.31.132.21
reverse names of the nameservers
ns1.optus.net
ns2.optus.net
mailservers used by this domain
extmail.optusnet.com.au
domains sharing mailservers
bugzilla.syd.optusnet.com.au
mail.optusnet.com.au
microplex.com.au
mpx.com.au
optusnet.com.au
pts.optusnet.com.au
shell01.syd.optusnet.com.au
sheriff.optusnet.com.au
staff.optusnet.com.au
ip numbers of mailservers
211.29.133.14
reverse names of the mailservers
extmail.optusnet.com.au
other names of the mailservers
extmail.mpx.com.au
domains sharing mailservers under another name
mail.mpx.com.au
subdomains
audns.optus.net
dns1.optus.net
hostmaster.optus.net
members.optus.net
ns1.optus.net
ns2.optus.net
www.optus.net