Which Unicode block spans U+1F300 to U+1F5FF?

The Unicode block from U+1F300 to U+1F5FF is Miscellaneous Symbols and Pictographs.

This block contains a broad collection of pictographic symbols, including weather and landscape icons, celestial objects, plants, animals, food, activities, and many familiar emoji. Examples include 🌈 at U+1F308, 🌍 at U+1F30D, 🐀 at U+1F400, and 🎂 at U+1F382.

The range is one of several Unicode blocks associated with emoji, but it is not synonymous with the entire emoji repertoire. Other emoji appear in blocks such as Emoticons, Transport and Map Symbols, Supplemental Symbols and Pictographs, and Symbols and Pictographs Extended-A. Unicode block membership describes where characters are encoded, while emoji status describes how characters may be used and presented.

Dingbats is a separate block, and Transport and Map Symbols occupies U+1F680–U+1F6FF. Supplemental Symbols and Pictographs is later in the supplementary range, U+1F900–U+1F9FF, so none of those alternatives matches the stated endpoints.