...+ We expect U.S.-based telecommunications provider AT&T Inc.'s adjusted net debt to EBITDA to be in the low-3x area over the next couple of years following its recent acquisitions of DIRECTV, NII Mexico, and Iusacell, coupled with its spending on the Advanced Wireless Service (AWS)-3 spectrum auction. + We are affirming all of our ratings, including our '###+' corporate credit rating, on the company. + We are revising our assessment of the company's financial risk profile to "significant" from "intermediate" and our comparable rating analysis to positive from negative. + The stable outlook reflects our expectation for low-single-digit percent revenue and EBITDA growth and leverage in the low-3x area over the next couple of years. NEW YORK (Standard & Poor's) Aug. 20, 2015--Standard & Poor's Ratings Services today said it affirmed all of its ratings, including the '###+' corporate credit rating, on Dallas-based AT&T Inc. The outlook is stable. At the same time, we revised our assessment...