
IPv4 Address Classes (A-E) Explained: A Comprehensive Guide
In the IPv4 IP address space, there are five classes: A, B, C, D and E. Each class has a specific range of IP addresses (and ultimately dictates the number of devices you can have on your network).
Introduction of Classful IP Addressing - GeeksforGeeks
Oct 4, 2025 · Classful IP addressing was an early method (1981–1993) for assigning IP addresses and dividing the IPv4 address space. It was later replaced by CIDR (Classless Inter-Domain Routing), …
IP Address Classes Explained with Examples
May 26, 2025 · This tutorial explains IP address classes in detail through examples. Learn how IP addresses are organized in IP classes and how to identify the class of an IP address.
IPv4 - Address Classes - Online Tutorials Library
Internet Protocol hierarchy contains several classes of IP Addresses to be used efficiently in various situations as per the requirement of hosts per network. Broadly, the IPv4 Addressing system is …
IPv4 Classes: What are They & How are They Used | Hostwinds
May 23, 2024 · IPv4 addresses are divided into 5 classes (A, B, C, D, E). Each class is designed to address different sized networks, accommodate specific entities, and ultimately simplify the routing …
Demystifying IP Classes: A Beginner’s Guide to IPv4 Addressing
Jan 24, 2024 · IPv4 address classes categorize IP addresses into groups based on their leading bits. There are five classes: A, B, C, D, and E. Class A has a broad address range for large networks, …
IP Address Classes - Guru99
Aug 13, 2025 · Here, classes A, B, C offers addresses for networks of three distinct network sizes. Class D is only used for multicast, and class E reserved exclusively for experimental purposes. Let’s see …
Classes of IP addresses - Study-CCNA
TCP/IP defines five classes of IP addresses: class A, B, C, D, and E. Each class has a range of valid IP addresses. The value of the first octet determines the class. IP addresses from the first three classes …
Fundamentals of Classful IPv4 addressing - Cisco Learning Network
First octet is used to decide the range of network address' available for a particular class of Ip address'. The default network mask dictates the total number of bits available for all network numbers in that …
What Is IPv4 (Internet Protocol Version 4)? - WhatIsMyIP.com®
There are five classes of IPv4 addresses: class A, class B, class C, class D, and class E. IP providers reserve classes D and E for special use, meaning that the primary concern lies with classes A, B, …