From the article, it seems that it is best-applied in situations where the following constraints apply: 1. No existing national addressing system exists. 2. S

From the article, it seems that it is best-applied in situations where the following constraints apply: 1. No existing national addressing system exists. 2. Streets are not named (or do not exist). 3. The address space to be described is extremely sparse. 4. Mailing addresses are transient (i.e. buildings move, as tents, vehicles, etc). A dense apartment building in an urban area is unlikely to be described by any of these constraints. As mentioned elsewhere, these problems can also be solved by latitude/longitude coordinates. However, this simply provides a friendlier "hostname" convention to a numeric backend.