Brevity code
Radio and telegraph signals encoding longer definitions
title: "Brevity code" type: doc version: 1 created: 2026-02-28 author: "Wikipedia contributors" status: active scope: public tags: ["brevity-codes"] description: "Radio and telegraph signals encoding longer definitions" topic_path: "general/brevity-codes" source: "https://en.wikipedia.org/wiki/Brevity_code" license: "CC BY-SA 4.0" wikipedia_page_id: 0 wikipedia_revision_id: 0
::summary Radio and telegraph signals encoding longer definitions ::
Brevity codes are used in amateur radio, maritime, aviation, police, and military communications. They are designed to convey complex information with a few words or codes. Some are classified from the public.
List
- ACP-131 Allied military brevity codes
- ARRL Numbered Radiogram
- Commercial codes such as the Acme Commodity and Phrase Code, the ABC Telegraphic Code, Bentley's Complete Phrase Code, and Unicode
- Fox
- Multiservice tactical brevity code used by various military forces. The codes' procedure words, a type of voice procedure, are designed to convey complex information with a few words, when brevity is required but security is not
- Ten-code, North American police brevity codes, including such notable ones as 10-4
- Phillips Code
- NOTAM Code
- Q code, currently used mainly by amateur radio operators especially when using Morse code, originally designed for use by British ships and coastal stations
- Wire signal, Morse Code abbreviation, also known as 92 Code. Appears in informal language-independent ham conversations
- World War II Allied names for Japanese aircraft
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