IP Subnet Calculator

IP Address:
Netmask:
Wildcard Mask:
CIDR Notation:
Network Address:
Usable Host Range:
Broadcast Address:
Binary Netmask:
Total number of hosts:
Number of usable hosts:
CIDR Used:

IP Subnet Calculator

IP Subnet Calculator is an online tool which accept CIDR (Classless Inter-Domain Routing) and calculate IP Address, netmask, wildcard mask, CIDR notation, network address, useable IP address like first useable IP, last useable IP which is called useable host range, broadcast address, binary netmask, total number of hosts, IP address and total useable IP address in CIDR used for calculation.

IP to Decimal Conversion

IP to Decimal Conversion is an online tool which will not only convert an IP Address to Decimal but will also convert IP to Hexadecimal, IP to Binary or Quads. This tool can convert any IPv4 or IPv6 Address from dotted-decimal address to decimal format and you can also convert the Decimal or Hexadecimal to IPv4 or IPv6 as well. IP to Decimal Conversion is a free utility provided by IP Address Host.

Reverse DNS Lookup

Reverse DNS Lookup, NSLOOKUP is a program to query domain name server (DNS) for IP Address to Fully Qualified Domain Name. On Windows it is called nslookup command and on Linux/Unix or Apple Mac machine use Dig command for this purpose. NSLOOKUP or Reverse DNS (rDNS) is a method of resolving an IP address into a domain name. Reverse DNS lookup is a free online tool.