Discourse categorisation is a complex problem, and even in the general definition of register given above (language variation defined by use not user), there are cases where other kinds of language variation, such as regional or age dialect, overlap.
There is no area code 523 in North America (USA, Canada, etc.). It  is unassigned.    International telephone country code +52 is Mexico, and a number  beginning with â¦ +52 3 is a landline in the western part of the  country; for example, a number beginning with +52 33 is a landline  in Guadalajara.here is no area code 529 in Mexico. It is unassigned.    However, Mexico uses international telephone country code +52, and  area codes beginning with 9 are in the so â¦ uthernmost part of the  country. For example, the area code for the city of Oaxaca is 951.
It is one of the original area codes established in 1947, and originally covered the entire southwest quadrant of the state. In 1996, however, most of the northern and eastern portion of the old 513 territory, including Dayton, was split into area code 937. new area code 283 has been assigned to overlay the current 513 area, but this has been delayed as the 513 area code has not yet been depleted of available numbers.