Mark Keiffer has just begun chapter two in his truly blessed life. Born in Nashville, Tennesse, Mark grew up in Kellyville, OK. There Mark meet his wife of 38 years, Tamara. Mark and Tamara are the proud parents of three sons. All three are married and they are currently doing everything possible to spoil their two grandchildren. Mr. Keiffer earned his B.S. in Mathematics at East Central University in Ada, OK. He earned his M.S. in Business Management from Webster University in St. Louis, Missouri. Mark spent 30 years in a variety of operational and support positions at AT&T before retiring in 2012. Mr. Keiffer began his AT&T career in Oklahoma City as an Engineer with Southwestern Bell Telephone Company in 1982. As Mark moved through the ranks at AT&T, he held several key Executive positions across the AT&T portfolio. He has served as President and CEO of AT&T Southwest, where he was responsible for operations in the Southwest region, including network, consumer, and business sales. He also held senior positions as Executive Vice President-Enterprise Business Sales and as Chief Marketing Officer-Business. At his retirement, he was President-Home Solutions, where he was responsible for AT&T’s consumer wireline organization. He led marketing, sales and service teams for all consumer products.