Subnet Calculator Network Class A OB IP Address 192.0.1.1 Subnet Mask 255.255.255.0 Subnet Bits First Octet Range 192-223 Hex IP Address C0.00.01.01 Wildcard Mask 0.0.0.255 Hosts per Subnet 254 0 Mask Bits 24 Maximum Subnets 1 Host Address Range 192.0.1.1 192.0.1.254 Broadcast Address 192.0.1.255 Subnet ID 192.0.1.0 Subnet Bitmap 110nnnnn.nnnnnnnn.nnnnnnnn.hhhhhhhh IP Subnet Calculator The IP Subnet Mask Calculator enables subnet network calculations using network class, IP address, subnet mask, subnet bits, mask bits, maximum required IP subnets and maximum required hosts per subnet. Results of the subnet calculation provide the hexadecimal IP address, the wildcard mask, for use with ACL (Access Control Lists), subnet ID, broadcast address, the subnet address range for the resulting subnet network and a subnet bitmap. For classless supernetting, please use the CIDR Calculator. For classful supernetting, please use the IP Supernet Calculator. For simple ACL (Access Control List) wildcard mask calculations, please use the ACL Wildcard Mask Calculator. Note: These online network calculators may be used totally free of charge provided their use is from this url (www.subnet-calculator.com).