AT&T District of Columbia

Meet our team

Denis P. Dunn
President – AT&T Maryland, DC & Delaware
Denis P. Dunn is the president of AT&T Maryland, D.C. and Delaware. Denis joined the AT&T external and legislative affairs team in Cleveland, Ohio, in 2000 and has worked in the mid-Atlantic region since 2008.

Stay connected with AT&T District of Columbia

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students mentored

in District of Columbia through Aspire Mentoring Academy from 2012–2017
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of personal time given by AT&T employees in District of Columbia to community outreach activities in 2018 — worth more than $70,000
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More than


contributed by AT&T, the AT&T Foundation and our employees from 2016–2018 through giving programs in District of Columbia
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alternative vehicles

operated in District of Columbia as of June 30, 2020
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energy efficiency projects in District of Columbia in 2017 resulted in annualized savings of more than 240,000 kilowatt hours and the equivalent of removing 15 cars from the road annually