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Historical IP address lists: "INTERNET PROTOCOL ADDRESS SPACE". Internet Assigned Numbers Authority (IANA). October 2000. Archived from the original on 18 October 2000 First version of IANA table with historical notes via the Internet Archive Wayback Machine. "Internet Protocol v4 Address Space".
The number of addresses usable for addressing specific hosts in each network is always 2 N - 2, where N is the number of rest field bits, and the subtraction of 2 adjusts for the use of the all-bits-zero host value to represent the network address and the all-bits-one host value for use as a broadcast address. Thus, for a Class C address with 8 ...
Address range Number of addresses Scope Description ... In use for multicast [10] (former Class D network) ... IPv4-translated addresses 64:ff9b::/96 ...
Show plain text results rather than a table. |allocation=n Applies to IPv6; ignored for IPv4 addresses. The number n can be 48 to 128; the default is 64. With the default value of 64, ranges with fewer IPv6 addresses than a /64 allocation are not considered. That means the results will not include a /n range with n > 64. |results=all
Both the IPv4 and the IPv6 specifications define private IP address ranges. [ 1 ] [ 2 ] Most Internet service providers (ISPs) allocate only a single publicly routable IPv4 address to each residential customer, but many homes have more than one computer , smartphone , or other Internet-connected device.
Decomposition of the quad-dotted IPv4 address representation to its binary value. IPv4 uses 32-bit addresses which limits the address space to 4 294 967 296 (2 32) addresses. IPv4 reserves special address blocks for private networks (2 24 + 2 20 + 2 16 ≈ 18 million addresses) and multicast addresses (2 28 ≈ 268 million addresses).
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This originates from the classful network design of the early Internet when this group of addresses was designated as Class D. The CIDR notation for this group is 224.0.0.0 / 4. [1] The group includes the addresses from 224.0.0.0 to 239.255.255.255. The address range is divided into blocks each assigned a specific purpose or behavior. [2]