Despite being the No. 3 wireless carrier in the United States, Sprint leads the industry in phone recycling. Last year, Sprint reclaimed 4.4 million phones through voluntary collection programs — compared to AT&T’s 3.1 million and Verizon’s 3 million — and in September, Guinness World Records recognized Sprint for shattering the record for the number of cellular phones recycled in one week: 103,582 cellular phones, more than double the previous record.