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



students mentored

in District of Columbia through Aspire Mentoring Academy from 2012–2017



of personal time given by AT&T employees in District of Columbia to community outreach activities in 2018 — worth more than $70,000

More than


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


alternative vehicles

operated in District of Columbia as of June 30, 2020


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
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