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The domain name .tel is a top-level domain (TLD) in the Domain Name System (DNS) of the Internet. It was approved by ICANN as a sponsored top-level domain, and is operated by Telnic.〔(【引用サイトリンク】title=Telnic web site )〕 Telnic announced in January 2011 that over 300,000 domains had been registered since the start of general availability on 24 March 2009. A substantial drop of mostly IDN .tels occurred at the beginning of 2014 - the current total registered .tels as at 3 February 2014 is 148,144 according to the Daily Stats monitor at http://registrarstats.com/TLDDomainCounts.aspx The 2014 Monthly Stats for .tel can be monitored at http://www.hosterstats.com/DomainNameCounts2014.php The domain's purpose is to provide a single name space for Internet communications services. Subdomain registrations serve as a single point of contact for individuals and businesses, providing a global contact directory service by hosting all types of contact information directly in the Domain Name System, without the need to build, host or manage a traditional web service. Additionally, as of July 2010, every ''tel'' domain acts as an OpenID and an increasing number of Voice over Internet Protocol (VoIP) clients can address a ''tel'' domain name directly. The TLD implementation also supports the hCard micro-format.〔http://telnic.org/downloads/TelnicDataPortability.pdf〕 ==Administration of domains== Telnic started publicly accepting applications for name registrations on 3 February 2009 after a closed Sunrise period for trademark holders. At present, information in ''.tel'' can be controlled by the owner through a website control panel that Telnic has created for registrars to provide to their customers, or through free clients for BlackBerry, Microsoft Outlook, iPhone, Android and some third party VoIP softphone clients. With the introduction of support for OAuth in July 2010, however, new third-party clients and services are available to tel registrants for publishing records to their domains securely, including the possibility of editing information offline via SMS gateways. The control panel is an open source application, and can be changed or completely replaced by registrars, as the application programming interfaces required to manage information in the DNS were released by Telnic in October 2008. When viewed over the Web, all tel domains point directly to a Telnic proxy webpage that is populated on the fly presenting the respective domain name owner's contact data stored within the DNS system. domains can also be accessed without opening a browser on many devices through open source applications〔(【引用サイトリンク】title=Telnic | Software )〕 or through direct DNS lookups. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「.tel」の詳細全文を読む スポンサード リンク
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