I did some search
I know that some have post tih information
These bricks in front of the Magic Kingdom, along the paths to the Ticket and Transportation Center and to the Contemporary, were sold to folks wishing to commemorate their visits to Walt Disney World.
They have a serial number such as W00-250 or E00-250. The letter determines which *path* it is on, currently there are 3 different paths: (W)est, (E)ast, and (C)ontemporary. The numbers attatched to the letter give the *general* area on the path. The last three digits (those after the hyphen) are just unique numbers.
The bricks are not necessarily placed in numeric order. In most cases the bricks are placed so that the *W00-2xx* series are located near each other. Therefore the first 4 digits can give a very specific area of where the brick is located, within the last 2 digits, the bricks are scrambled. The above two numbers belong to Michael Eisner & his wife and Roy Disney & his wife.