The "routing prefix" may be expressed in Classless Inter-Domain Routing (CIDR) notation written as the first address of a network, followed by a slash character ("/"), and ending with the bit-length of the prefix. For example, is the prefix of the Internet Protocol version 4 network starting at the given address, having 24 bits allocated for the network prefix, and the remaining 8 bits reserved for host addressing. Addresses in the range to belong to this network. The IPv6 address specification is a large address block with 296 addresses, having a 32-bit routing prefix.