AT&T Inc. is the world’s largest telecommunications company, the parent company of an agglomerate of several media companies establishing the world’s largest media and entertainment company in terms of revenue. With over 140 years of experience, AT&T is proud to share its legacy. The invention of the transistor as well as the solar cell are fundamental elements of the modern digital world. The company’s mission is to inspire people to reach new heights, empowering us through communication and entertainment.The idea is to continue to reinvent and redefine the world of technology, media and telecommunications to offer you the best in connectivity. You can save on your internet, TV and phone services when you use an AT&T internet promo code, AT&T TV promo code or an AT&T coupon from Savings.com.