Single-letter second-level domains
Encyclopedia
Single-letter second-level domains are domain name
Domain name
A domain name is an identification string that defines a realm of administrative autonomy, authority, or control in the Internet. Domain names are formed by the rules and procedures of the Domain Name System ....

s in which the second-level domain
Second-level domain
In the Domain Name System hierarchy, a second-level domain is a domain that is directly below a top-level domain . For example, in example.com, example is the second-level domain of the .com TLD....

 consists of only one letter, such as x.com. In 1993, the Internet Assigned Numbers Authority
Internet Assigned Numbers Authority
The Internet Assigned Numbers Authority is the entity that oversees global IP address allocation, autonomous system number allocation, root zone management in the Domain Name System , media types, and other Internet Protocol-related symbols and numbers...

 (IANA) explicitly reserved all single-letter and single-digit second-level domain names in the top-level domain
Top-level domain
A top-level domain is one of the domains at the highest level in the hierarchical Domain Name System of the Internet. The top-level domain names are installed in the root zone of the name space. For all domains in lower levels, it is the last part of the domain name, that is, the last label of a...

s com
.com
The domain name com is a generic top-level domain in the Domain Name System of the Internet. Its name is derived from commercial, indicating its original intended purpose for domains registered by commercial organizations...

, net
.net
The domain name net is a generic top-level domain used in the Domain Name System of the Internet. The name is derived from network, indicating its originally intended purpose for organizations involved in networking technologies, such as Internet service providers and other infrastructure companies...

, and org
.org
The domain name org is a generic top-level domain of the Domain Name System used in the Internet. The name is derived from organization....

, and grandfathered
Grandfather clause
Grandfather clause is a legal term used to describe a situation in which an old rule continues to apply to some existing situations, while a new rule will apply to all future situations. It is often used as a verb: to grandfather means to grant such an exemption...

 those that had already been assigned. In December 2005, ICANN
ICANN
The Internet Corporation for Assigned Names and Numbers is a non-profit corporation headquartered in Marina del Rey, California, United States, that was created on September 18, 1998, and incorporated on September 30, 1998 to oversee a number of Internet-related tasks previously performed directly...

 considered auctioning these domains.

Active single-letter domains

On December 1, 1993, the Internet Assigned Numbers Authority
Internet Assigned Numbers Authority
The Internet Assigned Numbers Authority is the entity that oversees global IP address allocation, autonomous system number allocation, root zone management in the Domain Name System , media types, and other Internet Protocol-related symbols and numbers...

 (IANA) explicitly reserved the remaining single-letter and single-digit domain names. The few domains that were already assigned were grandfathered in and continued to exist.

The assigned domains in this group are the following:
Domain 1993 Owner Current Owner
i.net INet Solutions Ltd Future Media Architects
Future Media Architects
Future Media Architects is an internet development company founded in 2002. FMA is primarily known for its large portfolio of internet domain names, estimated to exceed 120,000, and has faced several lawsuits....

q.com JG CenturyLink
CenturyLink
CenturyLink, Inc. is a United States telecommunications firm, headquartered in Monroe, Louisiana. The company, founded as Central Telephone & Electronics Corporation in 1968, later changed its name to Century Telephone Enterprises, Inc. in 1971, and then was called CenturyTel, Inc. from 1999 to 2010...

q.net Privately owned Qwest
x.com Weinstein & DePaolis X Commerce
x.org The Open Group
The Open Group
The Open Group is a vendor and technology-neutral industry consortium, currently with over three hundred member organizations. It was formed in 1996 when X/Open merged with the Open Software Foundation...

 
X.Org Foundation
X.Org Foundation
The X.Org Foundation is the organization holding the stewardship for the development of the X Window System. It was founded on 22 January 2004....

z.com HomePage.com Nissan Motors
Nissan Motors
, usually shortened to Nissan , is a multinational automaker headquartered in Japan. It was a core member of the Nissan Group, but has become more independent after its restructuring under Carlos Ghosn ....



As of August 2011 only three domains, i.net, x.com and x.org host a web site. q.com is active but redirects to centurylink.com.

There are a few single-letter second-level domains not listed under country code top-level domains. These TLDs are not controlled directly by IANA and national registrars may decide whether to allow single-letter domains or not. An example is u.tv for Ulster Television. Although some registrars allow these one character domains, most charge either 5 or 4 figure fees. An example of this is the $50,000 price tag on a single letter domain at the Samoan NIC.

Two-letter domain names

Two-letter .com domain names were never reserved and it was possible for anyone to register them in the very early years of the Internet (from 1985 to 1998). Since 1998 all variations of the 26x26= 676 .com domains have been registered and they can only be obtained by buying them from the previous owner. In 1997 American Airlines
American Airlines
American Airlines, Inc. is the world's fourth-largest airline in passenger miles transported and operating revenues. American Airlines is a subsidiary of the AMR Corporation and is headquartered in Fort Worth, Texas adjacent to its largest hub at Dallas/Fort Worth International Airport...

 was the first company to buy a two-letter domain AA.com on the secondary market, followed in 1998 by Hennes & Mauritz HM.com and Deutsche Bank
Deutsche Bank
Deutsche Bank AG is a global financial service company with its headquarters in Frankfurt, Germany. It employs more than 100,000 people in over 70 countries, and has a large presence in Europe, the Americas, Asia Pacific and the emerging markets...

 DB.com.

Notable examples of two letter .com domains used by large corporations:
  • aa.com (American Airlines
    American Airlines
    American Airlines, Inc. is the world's fourth-largest airline in passenger miles transported and operating revenues. American Airlines is a subsidiary of the AMR Corporation and is headquartered in Fort Worth, Texas adjacent to its largest hub at Dallas/Fort Worth International Airport...

    )
  • ae.com (American Eagle Outfitters
    American Eagle Outfitters
    American Eagle Outfitters is an American clothing and accessories retailer based in Pittsburgh, Pennsylvania. It was founded in 1977 by Mark and Jerry Silverman as a subsidiary of Retail Ventures, Inc., a company which also owned and operated Silverman's Menswear...

    )
  • ba.com (British Airways
    British Airways
    British Airways is the flag carrier airline of the United Kingdom, based in Waterside, near its main hub at London Heathrow Airport. British Airways is the largest airline in the UK based on fleet size, international flights and international destinations...

    )
  • bg.com (Bergdorf Goodman
    Bergdorf Goodman
    Bergdorf Goodman is a luxury goods department store based on Fifth Avenue in Midtown Manhattan in New York City. The company was founded in 1899 by Herman Bergdorf and was later owned and managed by Edwin Goodman, and later his son Andrew Goodman....

    )
  • bh.com (Bell Helicopter)
  • bn.com (Barnes & Noble
    Barnes & Noble
    Barnes & Noble, Inc. is the largest book retailer in the United States, operating mainly through its Barnes & Noble Booksellers chain of bookstores headquartered at 122 Fifth Avenue in the Flatiron District in Manhattan in New York City. Barnes & Noble also operated the chain of small B. Dalton...

    )
  • bp.com (BP
    BP
    BP p.l.c. is a global oil and gas company headquartered in London, United Kingdom. It is the third-largest energy company and fourth-largest company in the world measured by revenues and one of the six oil and gas "supermajors"...

    )
  • bt.com (British Telecom)
  • ca.com (CA, Inc)
  • db.com (Deutsche Bank
    Deutsche Bank
    Deutsche Bank AG is a global financial service company with its headquarters in Frankfurt, Germany. It employs more than 100,000 people in over 70 countries, and has a large presence in Europe, the Americas, Asia Pacific and the emerging markets...

    )
  • dj.com (Dow Jones & Company
    Dow Jones & Company
    Dow Jones & Company is an American publishing and financial information firm.The company was founded in 1882 by three reporters: Charles Dow, Edward Jones, and Charles Bergstresser. Like The New York Times and the Washington Post, the company was in recent years publicly traded but privately...

    )
  • dq.com (Dairy Queen
    Dairy Queen
    Dairy Queen, often abbreviated DQ, is a chain of soft serve and fast food restaurants owned by International Dairy Queen, Inc, who also owns Orange Julius and Karmelkorn. The name "Dairy Queen" is taken from the name of their soft serve product, which the company refers to as "Dairy Queen" or...

    )
  • ea.com (Electronic Arts
    Electronic Arts
    Electronic Arts, Inc. is a major American developer, marketer, publisher and distributor of video games. Founded and incorporated on May 28, 1982 by Trip Hawkins, the company was a pioneer of the early home computer games industry and was notable for promoting the designers and programmers...

    )
  • eb.com (Encyclopædia Britannica
    Encyclopædia Britannica
    The Encyclopædia Britannica , published by Encyclopædia Britannica, Inc., is a general knowledge English-language encyclopaedia that is available in print, as a DVD, and on the Internet. It is written and continuously updated by about 100 full-time editors and more than 4,000 expert...

    )
  • ey.com (Ernst & Young
    Ernst & Young
    Ernst & Young is one of the largest professional services networks in the world and one of the "Big Four" accountancy firms, along with Deloitte, KPMG and PricewaterhouseCoopers ....

    )
  • fb.com (Facebook
    Facebook
    Facebook is a social networking service and website launched in February 2004, operated and privately owned by Facebook, Inc. , Facebook has more than 800 million active users. Users must register before using the site, after which they may create a personal profile, add other users as...

    )
  • ft.com (Financial Times
    Financial Times
    The Financial Times is an international business newspaper. It is a morning daily newspaper published in London and printed in 24 cities around the world. Its primary rival is the Wall Street Journal, published in New York City....

    )
  • ge.com (General Electric
    General Electric
    General Electric Company , or GE, is an American multinational conglomerate corporation incorporated in Schenectady, New York and headquartered in Fairfield, Connecticut, United States...

    )
  • go.com
    Go.com
    Go.com is a web portal first launched by Jeff Gold, and now operated by the Walt Disney Internet Group, which is a part of The Walt Disney Company. The portal includes content from ABC News, ESPN, and FamilyFun.com, all of which are associated with Disney and are hosted under a .go.com name...

    (The Walt Disney Company
    The Walt Disney Company
    The Walt Disney Company is the largest media conglomerate in the world in terms of revenue. Founded on October 16, 1923, by Walt and Roy Disney as the Disney Brothers Cartoon Studio, Walt Disney Productions established itself as a leader in the American animation industry before diversifying into...

    )
  • gm.com (General Motors
    General Motors
    General Motors Company , commonly known as GM, formerly incorporated as General Motors Corporation, is an American multinational automotive corporation headquartered in Detroit, Michigan and the world's second-largest automaker in 2010...

    )
  • gs.com (Goldman Sachs
    Goldman Sachs
    The Goldman Sachs Group, Inc. is an American multinational bulge bracket investment banking and securities firm that engages in global investment banking, securities, investment management, and other financial services primarily with institutional clients...

    )
  • hm.com (Hennes & Mauritz)
  • ha.com (Heritage Auctions
    Heritage Auctions
    Heritage Auction Galleries is the world's largest collectibles auctioneer and the third largest auction house, with over $700 million in annual sales and 600,000 online bidder-members...

    )
  • hp.com (Hewlett-Packard
    Hewlett-Packard
    Hewlett-Packard Company or HP is an American multinational information technology corporation headquartered in Palo Alto, California, USA that provides products, technologies, softwares, solutions and services to consumers, small- and medium-sized businesses and large enterprises, including...

    )
  • ld.com (Loren Data Corp.)
  • lg.com (LG Group
    LG Group
    LG Corp. is the second-largest South Korean conglomerate company following Samsung, and it is headquartered in the LG Twin Towers in Yeouido-dong, Yeongdeungpo-gu, Seoul. LG produces electronics, chemicals, and telecommunications products and operates subsidiaries like LG Electronics, LG Display,...

    )
  • me.com (Apple Inc.)
  • ms.com (Morgan Stanley
    Morgan Stanley
    Morgan Stanley is a global financial services firm headquartered in New York City serving a diversified group of corporations, governments, financial institutions, and individuals. Morgan Stanley also operates in 36 countries around the world, with over 600 offices and a workforce of over 60,000....

    )
  • ni.com (National Instruments
    National Instruments
    National Instruments Corporation, or NI , is an American company with over 5,000 employees and direct operations in 41 countries. Headquartered in Austin, Texas, it is a producer of automated test equipment and virtual instrumentation software...

    )
  • pg.com (Procter & Gamble
    Procter & Gamble
    Procter & Gamble is a Fortune 500 American multinational corporation headquartered in downtown Cincinnati, Ohio and manufactures a wide range of consumer goods....

    )
  • sc.com (Standard Chartered Bank
    Standard Chartered Bank
    Standard Chartered PLC is a multinational financial services company headquartered in London, United Kingdom with operations in more than seventy countries...

    )
  • st.com (STMicroelectronics
    STMicroelectronics
    STMicroelectronics is an Italian-French electronics and semiconductor manufacturer headquartered in Geneva, Switzerland.While STMicroelectronics corporate headquarters and the headquarters for EMEA region are based in Geneva, the holding company, STMicroelectronics N.V. is registered in Amsterdam,...

    )
  • ti.com (Texas Instruments
    Texas Instruments
    Texas Instruments Inc. , widely known as TI, is an American company based in Dallas, Texas, United States, which develops and commercializes semiconductor and computer technology...

    )
  • ua.com (Under Armour
    Under Armour
    Under Armour is an American sports clothing and accessories company. The company is a supplier of a wide range of sportswear and casual apparel mainly focusing on hi-tech sportswear for professional athletes...

    )
  • vf.com (Vanity Fair
    Vanity Fair (magazine)
    Vanity Fair is a magazine of pop culture, fashion, and current affairs published by Condé Nast. The present Vanity Fair has been published since 1983 and there have been editions for four European countries as well as the U.S. edition. This revived the title which had ceased publication in 1935...

    magazine)
  • vk.com (Vkontakte)
  • wp.com (WordPress.com
    WordPress.com
    WordPress.com is a weblog hosting provider owned by Automattic which opened to beta testers on August 8, 2005 and opened to the public on November 21, 2005. It is powered by the open source WordPress software...

    )
  • yp.com (Yellow Pages
    Yellow Pages
    Yellow Pages refers to a telephone directory of businesses, organized by category, rather than alphabetically by business name and in which advertising is sold. As the name suggests, such directories were originally printed on yellow paper, as opposed to white pages for non-commercial listings...

    )

Some two letter .com domains are also used as national country codes
which are promoted through the private London Based Domain registration company CentralNic
CentralNic
CentralNic is a domain registry based in London, England that currently manages the .la extension, as well as selling subdomains under us.com, uk.com, eu.com and other suffixes...

:

  • ar.com (websites in relation to Argentina)
  • br.com (websites in relation to Brazil)
  • cn.com (websites in relation to China)
  • eu.com (websites in relation to Europe)
  • gr.com (websites in relation to Greece)
  • hu.com (websites in relation to Hungary)
  • kr.com (websites in relation to Korea)
  • no.com (websites in relation to Norway)
  • ru.com (websites in relation to Russia)
  • sa.com (websites in relation to Saudi Arabia)
  • se.com (websites in relation to Sweden)
  • uk.com (websites in relation to the United Kingdom)
  • uy.com (websites in relation to Uruguay)
  • za.com (websites in relation to South Africa)


Most of these domains were registered by CentralNic between 1996 and 1998 at a time they were available for registration to anyone; some, like gr.com (already registered in 1994) were acquired later.

There are also 26x12= 312 less prominent .com two letter domains which make a combination of letters and numbers:
  • d2.com (Digital Domain
    Digital Domain
    Digital Domain is a visual effects and animation company founded by film director James Cameron, Stan Winston and Scott Ross. It is based in Venice, Los Angeles, California...

    )
  • o2.com (Telefónica Europe)
  • t3.com (T3 (magazine)

Two-letter domains with other extensions are less prominent
but they are also used by known companies:
az.de (Allianz
Allianz
SE is a global financial services company headquartered in Munich, Germany. Its core business and focus is insurance. As of 2010, it was the world's 12th-largest financial services group and 23rd-largest company according to a composite measure by Forbes magazine.Its Allianz Global Investors...

), dq.ca (Dairy Queen
Dairy Queen
Dairy Queen, often abbreviated DQ, is a chain of soft serve and fast food restaurants owned by International Dairy Queen, Inc, who also owns Orange Julius and Karmelkorn. The name "Dairy Queen" is taken from the name of their soft serve product, which the company refers to as "Dairy Queen" or...

), sf.net (SourceForge.net
SourceForge.net
SourceForge is a web-based source code repository. It acts as a centralized location for software developers to control and manage open source software development. The website runs a version of SourceForge Enterprise Edition, forked from the last open-source version available...

), si.edu (Smithsonian Institution
Smithsonian Institution
The Smithsonian Institution is an educational and research institute and associated museum complex, administered and funded by the government of the United States and by funds from its endowment, contributions, and profits from its retail operations, concessions, licensing activities, and magazines...

), un.org (United Nations
United Nations
The United Nations is an international organization whose stated aims are facilitating cooperation in international law, international security, economic development, social progress, human rights, and achievement of world peace...

).

In most TLDs such as fr
.fr
.fr is the country code top-level domain in the Domain Name System of the Internet for France. Along with .re and .tf, it is administered by AFNIC.The .fr top-level domain is divided into a number of second-level domains:...

, info
.info
The domain name info is a generic top-level domain in the Domain Name System of the Internet, The name is derived from information indicating that the domain is intended for informative Internet resources, although registration requirements do not prescribe any theme orientation.The info TLD was...

, two-letter domains are not available.

Market value of single- or two-letter .com domains

Only three of the 26 possible single-letter domains have ever been registered, all before 1992. The other 23 single-letter .com domains were registered January 1, 1992 by Jon Postel
Jon Postel
Jonathan Bruce Postel was an American computer scientist who made many significant contributions to the development of the Internet, particularly with respect to standards...

, with the intention to avoid a single company commercially controlling a letter of the Alphabet.

Many but not all .com two-letter domains are among the most valuable domains.

While it is widely believed that the domains business.com
Business.com
Business.com is a business search engine and web directory and pay per click advertising network. It includes Work.com, a business-to-business community publishing platform where experts share advice on common business topics in the form of how-to guides....

and sex.com
Sex.com
Sex.com is an Internet domain name and web portal currently owned by Clover Holdings LTD. The domain name was the focus of one of the most publicized legal actions about ownership of domain names...

have been the most valuable domain transactions, prominent two-letter domains have only been sold after nondisclosed transactions handled by specialized broker and law firms.

The value of the LG Group (the South Korean electronics conglomerate formerly known as Lucky Goldstar) purchase of LG.com was never published. LG Group missed the first sale of the domain in 2008 from the original owner the chemical company Lockwood Greene to the British ex- professional footballer Andy Booth
Andy Booth
Andrew David "Andy" Booth is a retired professional footballer. Whilst at Huddersfield he announced his retirement on 22 April 2009, but remains at the club as an ambassador.-Huddersfield Town:...

, who had used it to launch a footballing website known as LifeGames. They bought it one year later, in 2009, for a significant amount. Following the purchase LG Group changed worldwide marketing to LG.com, which is now their central internet address for all countries. All national LG Country domains like "LG.de" or "LG.com.mx" redirect to "LG.com".

The value of the initially secret November 2010 Facebook
Facebook
Facebook is a social networking service and website launched in February 2004, operated and privately owned by Facebook, Inc. , Facebook has more than 800 million active users. Users must register before using the site, after which they may create a personal profile, add other users as...

 purchase of FB.com was revealed two months later to be $8.5 million.

Fights for Two Letter Domains

Most well known international companies missed the opportunity to register the Internet address that matched their company initials.
This is due to the fact that two letter domains were among the very first domains to have been registered,
mostly by Internet-savvy technology corporations or by private individuals living in the USA where the Internet was first established.

The French fashion house Louis Vuitton
Louis Vuitton
Louis Vuitton Malletier – commonly referred to as Louis Vuitton , or shortened to LV – is a French fashion house founded in 1854 by Louis Vuitton. The label is well known for its LV monogram, which is featured on most products, ranging from luxury trunks and leather goods to ready-to-wear, shoes,...

 missed the registration of LV.com matching their well known "LV" monogram.
In 2004 the address LV.com was for sale by its owner Manifest Information Service but LVMH
LVMH
LVMH Moët Hennessy • Louis Vuitton S.A., better known as LVMH, is a French multinational luxury goods conglomerate headquartered in Paris, Île-de-France, France. The company was formed after the 1987 merger of fashion house Louis Vuitton with Moët Hennessy, a company formed after the 1971 merger...

 tried to get it via a domain law suit. As two letters can have many different significations the National Arbitration Forum denied the transfer of the domain. The failed lawsuit was followed by financial negotiations. The British insurance company Liverpool Victoria then became aware of the case; its new president Mike Rogers stepped in and in August 2007 outbid the world's largest luxury brand.

Missed Two Letter Domains

Due to late understanding of the internet many major corporations missed the registration or the acquisition of the internet address matching their two letter company initials.
An notorious example is "CA.com" which was first registered february 9 1996 by Computer Answers and in 2000 acquired by CA Technologies. It is now impossible for the Crédit Agricole
Crédit Agricole
Crédit Agricole S.A. is the largest retail banking group in France, second largest in Europe and the eighth largest in the world by Tier 1 capital according to The Banker magazine. It is also part of the CAC 40 stock market index....

 or the department store C&A
C&A
C&A is an international chain of fashion retail clothing stores, with its European head offices in Vilvoorde , Belgium and Düsseldorf, Germany...

 to get the domain name. Another example is "DB.com" which was first registered december 13 1997 by The Internet Company and in 1998 acquired by Deutsche Bank
Deutsche Bank
Deutsche Bank AG is a global financial service company with its headquarters in Frankfurt, Germany. It employs more than 100,000 people in over 70 countries, and has a large presence in Europe, the Americas, Asia Pacific and the emerging markets...

. It is now impossible for Deutsche Bahn
Deutsche Bahn
Deutsche Bahn AG is the German national railway company, a private joint stock company . Headquartered in Berlin, it came into existence in 1994 as the successor to the former state railways of Germany, the Deutsche Bundesbahn of West Germany and the Deutsche Reichsbahn of East Germany...

 or Dun & Bradstreet
Dun & Bradstreet
Dun & Bradstreet is a Fortune 500 public company headquartered in Short Hills, New Jersey, USA that provides information on businesses and corporations for use in credit decisions, B2B marketing and supply chain management...

to get the domain.

Controversy

With the 2005 announcement that registration of the remaining single-letter names might become available, some companies have attempted to establish a right to the names by claiming to own trademark rights over single letters used in such a context. U Magazine, a college oriented publication, has gone so far as to re-brand its Web site as "U.com" (with a ™ sign) in online logos and captions—even though it does not operate a web site at that URL. They sent a letter to ICANN attempting to gain priority for registration of this name. Other companies actually use their trademarks in commerce. G.com, which operates a search engine at www.search-g.com, has succeeded in registering its trademark with the United States Patent and Trademark Office(USPTO).

External links

The source of this article is wikipedia, the free encyclopedia.  The text of this article is licensed under the GFDL.
 
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