 The table (right) shows the typical assignment in the Bell System in use at the time.The letter Q was not used, and Z was translated to 0 (zero) on some dials, albeit never used in the name system.For example, a New Yorker's telephone number might have been CHelsea 2-5034, which a calling telephone subscriber would dial as the digit sequence 2425034, translating C to 2, and H to 4.