A vertical service coe or VSC is a special telephone number that usually begins with the * (star) key on the touch tone keypad. Most codes are two digits, although those starting with 2 or 3 are now usually three digits. Some cellular telephone companies also use # instead of *, though this is actually just a short number typically used for other commercial services (e.g. pizza delivery), and not a VSC for accessing telephone company services. In some cases VSCs can be accessed from rotary phones by dialing 11 instead of the *.