Area codes are not a new thing. The area code system that is used now from New York to LA (and beyond) was initially introduced in 1947. This was made to address the burden of ever-expanding telephone use across the country and to simplify the process of placing calls across long distances.

These days there are all sorts of area codes for all sorts of areas. It is easier than ever to place a phone call across long distances thanks not only to the area code system, but to the advent of cell phones being in every pocket. As time has gone by it is becoming increasingly common for people to have to dial in the area code for local calls. Here is why.

Increase in Users

The simplest reason is the fact that phone numbers are becoming more and more scarce. Populations are growing, and where it used to be that there was one phone number per household or business establishment now there is a phone number for every person who has a cell phone (or landline).

With that increase in phone users in a specific area there comes a scarcity of available 7-digit numbers before it becomes necessary to add new area codes to that region.

Overlay System


When a region runs out of available phone numbers, phone companies introduce “area code overlays.” This adds a new area code to the same geographical area, so both the new and old area codes exist together. This method helps create more phone numbers without needing to change existing ones.

10-Digit Dialing


In areas where multiple area codes overlap, everyone has to dial all 10 digits, including the area code, even for local calls. This helps ensure that calls go to the right number, as different area codes can be used within the same region for different numbers.

FCC Regulation


The Federal Communications Commission (FCC) has rules that require people to use area codes for local calls in areas with overlays. This ensures that calls are routed correctly and helps phone networks manage the growing number of new phone numbers being assigned in those areas.