Hello,
The IP address 209.131.119.0 does not have a reverse DNS PTR record.
Here is the whois information :
PHP:
network:ID:NETBLK-DATAGRAM.209.131.112.0/20
network:Auth-Area:209.131.112.0/20
network:Network-Name:DEMW-209.131.119.0-25
network:IP-Network:209.131.119.0/25
network:IP-Network-Block:209.131.119.0 - 209.131.119.127
network:Organization;I:DemonWare Ltd
network:Tech-Contact;I:admin@datagram.com
network:Admin-Contact;I:AR762-ARIN
network:Created:20050505
network:Updated:20090504
network:Updated-By:admin@datagram.com
network:Class-Name:network
network:ID:NETBLK-DATAGRAM.209.131.112.0/20
network:Auth-Area:209.131.112.0/20
network:Network-Name:DEMW-209.131.119.0-24
network:IP-Network:209.131.119.0/24
network:IP-Network-Block:209.131.119.0 - 209.131.119.255
network:Organization;I:DemonWare Ltd
network:Tech-Contact;I:admin@datagram.com
network:Admin-Contact;I:AR762-ARIN
network:Created:20050505
network:Updated:20090504
network:Updated-By:admin@datagram.com
Since it's a .0 I'd expect it to be the bottom IP of a
subnet and not be a router or server or anything like that.
Are you sure you meant to ask about an IP ending in .0?
-Raymond