Some people have heard truckers talking over the radio or with each other and utter a couple of numbers and codes including â€œ10-4.â€ Â The words â€œ10-4â€ actually represent a number code that some truck drivers use to mean that they understood what they are being told or that they are affirming what has been said by the other person. Â Using â€œ10-4â€ in communications via radio or mobile phones, for example, is a common thing for some truck drivers which is why some people have heard so many of them uttering this particular code.
The designation â€œ10-4â€ is part of many so-called â€œ10-codesâ€ that correspond to various coded messages starting with the number â€œ10.â€ Â Communication through 10-codes was commonly done by people involved in law enforcement. Eventually, though, the 10-codes were spread and used by private people using a CB or citizens band radio. Â Ten-codes basically shorten various common phrases and sentences which is why some people prefer to use them during radio communications. Â Ten-codes like â€œ10-4â€ were first used back in 1937 and were used by various law enforcement agencies to improve communications in terms of standardization and the shortening of phrases. Â By 2006, though, the U.S. government had pushed to stop using 10-codes in communications between various agencies because of the different interpretations on some codes. Â Some 10-codes may mean one thing for a group or agency while they may mean something else to some other groups of people.
The use of 10-codes is still being practiced, though, by some people including truckers and some people that work for the government. Â In the police department, for example, some still use various coded messages to describe certain details about a certain case or crime. For truckers, 10-codes also represent coded messages that they could use every day for their own activities. Â Aside from â€œ10-4,â€ other codes used by truckers include â€œ10-6â€ when trying to tell the other person that one is busy, â€œ10-1â€ when the person is unable to copy or understand the other person on the line, and â€œ10-20â€ to indicate location.
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