21
Mar
Old Phone Numbers With Letters. For example the number for Apple is 27753. This format was introduced in 1920s and eventually phased out by the 1960s. Customers remember these words in the vanity numbers and then they key it in using the corresponding number keys on their telephone keypad. When you dial the phone number 212 789-WORK you are actually dialing 212 789-9675.
This format was introduced in 1920s and eventually phased out by the 1960s. From 1921-1948 dialers used three letters and four numbers. 1612015 Phone subscribers were given a unique five-digit number within their service area. 11122012 Back in the old days the first two numbers of a phone number would indicate the exchange actually the central office. When you dial the phone number 212 789-WORK you are actually dialing 212 789-9675. Filling in for a 5 each.
Also 0O was also used for operator.
A Little History. Before the 1950s some cities used three letters and four numbers while others had two letters and three numbers. Is selected choose an English or Dutch word list to verify the phonewords. Or round brackets. Up until about the 1950s phone numbers were alphanumeric eventually settling on a 2-letter 5-number system that usually identified the region of the phone number and also aimed to make it more memorable. These would be preceded by two digitswhich were identified by lettersthat denoted the telephone exchange you were connected to.