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gns1.domainregistry.ie has one IP number , which also has a corresponding reverse pointer. ie use this as a nameserver. domainregistry.ie is a domain controlled by four nameservers. Two of them are on the same IP network. Incoming mail for domainregistry.ie is handled by one mailserver at domainregistry.ie themselves. gns1.domainregistry.ie is hosted on a server in United States even though the hostname implies Ireland.

gns1.domainregistry.ie
a records
 
+ 198.133.199.102 198.133.199.0/24 AS12008 -
+ --- -

domainregistry.ie
ns-soa records
ns0.domainregistry.ie
+ 193.1.32.38 193.1.0.0/16 AS1213 -
+ --- -
ns records
ice.netsource.ie
+ 212.17.32.2 212.17.32.0/19 AS9196 -
+ --- -
auth-ns2.ucd.ie
+ 137.43.132.54 137.43.0.0/16 AS2850 -
+ --- gravale-eth0.ucd.ie
+ --- gravale.ucd.ie
ns.heanet.ie
+ 193.1.193.194 193.1.0.0/16 AS1213 -
+ --- -
+ --- ie-collector.hostcount.ripe.net
ns0.domainregistry.ie
+ 193.1.32.38 193.1.0.0/16 AS1213 -
+ --- -
mx records
smtp2.domainregistry.ie
+ 213.190.149.217 213.190.128.0/19 AS5466 -
+ --- -
ip numbers of host
198.133.199.102
ptrs of ip numbers
gns1.domainregistry.ie
ip numbers using ptr to this host
198.133.199.102
198.133.199.129
domains using this as nameserver
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