|DNS Lookup, Reverse DNS Lookup, Domain Configuration Check and IP Address Calculators|
The Subnet Calculator will take a network address and netmask, or a CIDR address and calculate the subnet range, number of hosts, first address, last address and the netmask. This calculator works with both IPv4 and IPv6 subnets.
These calculators convert an IPv4 dotted decimal IP address or an IPv6 IP address to an integer and convert an integer into an IPv4 or IPv6 IP address.
The IP Address Country calculator determines which country an IP address comes from (ie. which country it has been assigned to). The CIDR to IP Address calculator takes a CIDR format address and converts it into an IP address range.
These tools convert IPv6 addresses to their abbreviated (compressed) or expanded notation.
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