Full Form

What is ATTYT and the complete form of ATTYT? The ATTYT Full Form is "American Telephone and Telegraph Co". It is also known as "Attorney", and "A Thousand Thank Yous". The AT&T company is the parent company of a US multinational conglomerate registered in Delaware but headquartered in Dallas, Texas. It is the largest telecommunications company globally and the largest provider of mobile services in the United States. AT&T Inc. was founded in 1885 as the American Bell Telephone Company and later became AT&T Corporation. In 2005, it rebranded to AT&T Inc. after spinning off its wireless division. The company employs over 256,000 people worldwide, has over $146 billion annual revenue, and provides service to over 350 million customers. AT&T is also the world's largest pro...