As of 26 May 2016, the World Wide Web Consortium (W3C) has 419 Members.
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Telefónica strongly supports the W3C in the creation of universal, interoperable and open standards that foster the creation of the most innovative applications and services in the Web. Telefónica is a leading company in the international telecommunications market and operates in more than 23 countries. Contact Telefónica
W3C Member since 16 October 2003.