Calix Q2 U.S. Rural Broadband Report Shows Steady Increase in Internet Traffic

More than 250,000 endpoints provide trending information across 65 U.S. service provider networksPETALUMA, CA –September 19, 2012 – Calix, Inc. (NYSE: CALX) today announced the availability of its latest Calix U.S. Rural Broadband Report, based on Internet traffic information drawn from over 65 U.S. communications service providers from the second quarter (April through June) of 2012. With its sample size growing by 150 percent to over 250,000 endpoints and the number of applications tracked increasing 39 percent to over 250 since the Q1 report; we believe that the Q2 2012 Calix U.S.

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