The 92 Code was first adopted by Western Union in 1859. The reason for this adoption was to reduce bandwidth usage over the telegraph lines and speed transmissions by utilizing a numerical code system for various frequently used phrases. 
1859 Western Union "92 Code"
The following code was taken from The Telegraph Instructor by G.M. Dodge.
|1||Wait a minute.||25||Busy on another wire.|
|2||Very Important.||26||Put on ground wire.|
|3||What time is it?||27||Priority, very important.|
|4||Where shall I go ahead?||28||Do you get my writing?.|
|5||Have you business for me?||29||Private, deliver in sealed envelope.|
|6||I am ready.||30||No more - the end.|
|7||Are you ready?||31||Form 31 train order.|
|8||Close your key, stop breaking.||32||I understand that I am to ....|
|9||Priority business. Wire Chief's call.||33||Answer is paid.|
|10||Keep this circuit closed.||34||Message for all officers.|
|12||Do you understand?||35||You may use my signal to answer this.|
|13||I understand.||37||Inform all interested.|
|14||What is the weather?||39||Important, with priority on through wire.|
|15||For you and others to copy.||44||Answer promptly by wire.|
|18||What's the trouble?||73||Best Regards.|
|19||Form 19 train order.||77||I have a message for you.|
|21||Stop for meal.||88||Love and kisses.|
|22||Wire test.||91||Superintendent's signal.|
|23||All stations copy.||92||Deliver Promptly.|
|24||Repeat this back.||134||Who is at the key?|
Today, amateur radio operators still use codes 73 and 88 profusely and –30– is used in journalism. Radio-amateurs also occasionally use the code 99 for "Go to Hell", though this may be their own addition to the code-table. The other codes have mostly fallen into disuse.
- "WESTERN UNION "92 CODE" & WOOD'S "TELEGRAPHIC NUMERALS"". Retrieved 2008-11-23.
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