Internet Addresses

Written by Sierra Rein
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There are many types of addresses used on the World Wide Web today. The first is an IP address, which is a 32-bit numeric line that identifies a computer or other mechanical device connected to a TCP/IP network. The format is written as four numbers separated by periods, each of which can range between zero and 255.

A registered IP address is called an "internet address," meaning that it is connected to the Internet and is not a duplicate number. One can purchase registered internet addresses through any one of four regional internet registries: ARIN, RIPE NCC, LACNIC and APNIC. These registries in turn assign internet addresses from one of three different sub classes; Class A uses 126 networks for 16 million hosts, Class B uses 16,000 networks for 65,000 hosts, and Class C uses two million networks for 254 hosts.

Internet Addresses That Don't Require Numbers

Of course, not everyone has the ability to instantly memorize the IP address of a website. Domain names are the most commonly used type of internet addresses and are much more user-friendly. Instead of memorizing and typing in a 32-bit number, a person merely has to type in the phrase or name that is being used as a domain name.

Most companies purchase domain name internet addresses that are easy to recognize and remember. They typically buy the same domain name as their company name, or abbreviate it if the company name is too long to type in. Individuals usually purchase domain internet addresses with their first and last names, but can personalize them with different permutations. Imagination must come into play if another party is already using one's company or personal name.

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