MyCSP is an online web portal developed by AT&T for its employees who can access all the information about the company, updates, holiday, notifications, their pension plans, etc.
ATT, Inc. acronym for American Telephone and Telegraph is an American multinational, conglomerate, and management company. Its headquarter is located in the Whitacre Tower in Downtown Dallas, Texas.
It is the largest telecommunications company in the world, the largest provider of 4G, 4.5G, and 5G services, mobile phones, and the largest provider of landline services in the United States through AT and T Communications.
As of June 14, 2018, it is also the parent company of media conglomerate Warner Media making it the number 1 largest media and entertainment company in the world.
As of 2018, AT and T is ranked # 9 on the Fortune 500 ranking of America’s largest corporations by total revenue.