Arcor is the second-biggest fixed phone line provider in Germany. It is owned primarily by Vodafone and has its headquarters in Eschborn near Frankfurt. Arcor is one of the few telecommunication companies in Germany who operate an ISDN network independent from the incumbent Deutsche Telekom. Arcor has 2.1 million ADSL customers and 1.1 million ISDN customers. Arcor was the first German telecommunications provider offering a phone flat rate for the ISDN line. For more information, visit
www.arcor.de.
