[["location", "function", "size ( square feet )", "property interest"], ["boston", "corporate headquarters ; us tower division", "30000 ( 1 )", "leased"], ["southborough", "data center", "13900", "leased"], ["woburn", "lease administration", "34000", "owned"], ["atlanta", "us tower and services division ; accounting", "17900 ( rental ) 4800 ( services )", "leased"], ["mexico city", "mexico headquarters", "12300", "leased"], ["sao paulo", "brazil headquarters", "3200", "leased"]]