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==Prefix codes in use today==
* The [[UTF-8]] system for encoding [[Unicode]] characters (using between one and four bytes per character) can be seen as a form of prefix coding
* [[country calling codes]] for international telephony * [[VCR Plus|VCR Plus+ codes]]
Commonly used techniques for constructing prefix codes include [[Shannon-Fano coding|Shannon-Fano codes]], [[Huffman coding|Huffman codes]], and [[universal code (data compression)|universal code]]s such as [[Elias delta coding]], [[Elias gamma coding]], [[Elias omega coding]], [[Fibonacci coding]], and [[Levenshtein coding]].
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