DUESSELDORF (Dow Jones)--Royal KPN NV's (KPN.AE) German unit E-Plus increased its second-quarter mobile service revenue 2% on year due to strong demand, it said Tuesday. Mobile service revenue in the quarter ended June 30 rose to EUR772 million from EUR757 million a year earlier, E-Plus said. E-Plus, Germany's No. 3 network provider, had 19.6 million customers at June 30, marking a 7% increase on year, and gained 300,000 subscribers in the second quarter. Last week, Vodafone PLC's (VOD) German unit posted an increase in mobile service revenue, of 0.2%, for the first time since more than two years. Telefonica SA's (TEF) O2 will report July 29, and Deutsche Telekom AG's (DTE.XE) second-quarter report is due Aug. 5. -By Archibald Preuschat, Dow Jones Newswires; +49 211 13872 18; archibald.preuschat@dowjones.com Order free Annual Report for Vodafone Group PLC Visit http://djnweurope.ar.wilink.com/?ticker=GB00B16GWD56 or call +44 (0)208 391 6028 (END) Dow Jones Newswires July 27, 2010 03:45 ET (07:45 GMT)