The Unicode Standard organises characters into Character Blocks - groupings of related characters.
The table on the Character Blocks page initially lists these blocks alphabetised by block name, but can be sorted by the first Unicode Scalar Value (USV) by clicking on that column heading. This will display the blocks in the order they appear in The Unicode Standard. Click on the block name to see a list of characters in that block.
The list also includes a reference to how SIL International uses the Unicode PUA (Private Use Area).