0001023731 2020-01-16 2020-01-16 false 0001023731 8X8 INC /DE/ 8-K 2020-01-16 DE 001-38312 77-0142404 2125 O'Nel Drive San Jose CA 95131 408 727-1885 false false false false COMMON STOCK, PAR VALUE $.001 PER SHARE EGHT NYSE false