What is the name of the Unicode block from U+1F600 to U+1F64F?

The Unicode block from U+1F600 to U+1F64F is Emoticons.

Emoticons is an official Unicode block containing 80 code points, most of them depicting facial expressions. It includes familiar characters such as grinning face at U+1F600, face with tears of joy at U+1F602, smiling face with heart-shaped eyes at U+1F60D, and loudly crying face at U+1F62D. The block also contains cat faces, monkeys, hand gestures, and other expressive symbols.

The block was first proposed in 2008 and entered Unicode with version 6.0 in 2010. Its adoption was strongly influenced by emoji sets developed by Japanese mobile-phone carriers. Unicode standardized these characters so that digital text could represent them consistently across platforms, although individual devices may draw them differently.

A common mix-up is treating “emoji” and “Emoticons” as interchangeable names. Emoji is the broader visual-symbol system, while Emoticons is the specific Unicode block name. Later Unicode versions added characters to the block: it contained 63 in Unicode 6.0, 76 in 6.1, and reached 80 in Unicode 8.0.