FunTrivia Homepage New Questions Unanswered Post a Question Goto Qn # Archives

When did they start using the numbers 555 on television and in movies for the first three numbers in a phone number?

Question #46416. Asked by usaf01. (Apr 14 04 1:04 PM)

NathaNsc

I'm not sure when they started this practice, but the significance of it is that no phone number in the US starts with 555.

 Apr 14 04, 6:45 PM
griffinj

In 1973 movies and television began using the prefix 555 for phone numbers. Before that Ma Bell provided a list of unassigned numbers for use on screen.
Today if one dials a 555 number they will be connected to a directory assitance operator, presumably who would be trained to deal with those folks who have nothing better to do than try to call Kojak.

 Apr 14 04, 7:18 PM

 Take any positive whole number not greater than 50. If the number is even, divide it by two. If the number is odd, multiply it by 3, and add 1 to the result. Apply the same method to the resulting number, and continue in this way forming a chain of numbers untill you finally arrive at the number 1.Shown below is a chain of numbers that results from this method if you begin with 15: 15 - 46 - 23 - 70 - 35 - 106 - 53 - 160 - 80 - 40 - 20 - 10 - 5 - 16 - 8 - 4 - 2 - 1. As you can see, the number 15 requires 17 steps to end up at 1. Of the numbers not greater then 50, which takes the longest to reach the number 1?

Suggested Related FunTrivia Quizzes - 90,000 currently online

1 By the Numbers 2005
 Let's see if you can keep up with some numbers of some Major League 2005 players. Good luck. :-)
MLB Names & Numbers Average
10 Q
Nightmare
May 13 05
615 plays
2 By Their Numbers
 Each question in this quiz deals with players associated with the number of the question. Good luck!
USA by Numbers Tough
10 Q
KAREDEVF1
Jun 15 07
414 plays
3 Numbers
 Complete the number questions to make the statements accurate.
Mixed Numbers Tough
10 Q
harleydudette
Mar 13 00
2451 plays

"Ask FunTrivia" is for entertainment purposes only, and answers offered are unverified and unchecked by FunTrivia. We cannot guarantee the accuracy or veracity of ANY statement posted. Feel free to post an updated response if you feel that an answer is inadequate or incorrect. Please thoroughly research items where accuracy is important to you using multiple reliable sources. By accessing our website, you agree to be bound by our terms of service.