In telecommunications, an area code split is the practice of introducing a new telephone area code by geographically dividing an existing numbering plan area (NPA), and assigning area codes to the resulting divisions, but retaining the existing area code only for one of the divisions. The purpose of this practice is to provide more central office prefixes, and therefore more telephone numbers, in an area with high demand for telephone services, and prevent a shortage of telephone numbers.

Used to describe something not to your taste, but might be enjoyed by someone of another region or social group.
I didn't like that new TV show - it was too regional.

n.

The traditional geographic regions of Greece () are the country's main historical-geographic regions, and were also official administrative regional subdivisions of Greece until the 1987 administrative reform.Π.

(regions)

<application> (GIS) A computer system for capturing, storing, checking, integrating, manipulating, analysing and displaying data related to positions on the Earth's surface. Typically, a GIS is used for handling maps of one kind or another. These might be represented as several different layers where each layer holds data about a particular kind of feature (e.g. roads). Each feature is linked to a position on the graphical image of a map. Layers of data are organised to be studied and to perform statistical analysis (i.e. a layer of customer locations could include fields for Name, Address, Contact, Number, Area). Uses are primarily government related, town planning, local authority and public utility management, environmental, resource management, engineering, business, marketing, and distribution. {GIS dictionary (http://geo.ed.ac.uk/root/agidict/html/welcome.html)}. Geographic Information Systemngraphic/wotzagis.html">http://ncl.ac.uk/Geographic Information Systemngraphic/wotzagis.html. (1995-12-21)