312 Area Code

Introduction To Area Code 312

Area code 312 is one of the original area codes established in 1947 for Chicago. It covers the downtown and north side of the city.

Regions That Use 312 As Area Code

312 is an area code that is predominantly used in the Midwest and Illinois. The code was assigned to Illinois in 1957, and has since grown to include several other states in the Midwest. Some of the states that use the 312 area code include Indiana, Wisconsin, and Michigan.The 312 area code is one of the oldest area codes in the United States, and it has remained relatively unchanged since it was first created. However, there have been a few minor changes to the code over the years. For example, the 312 area code once included parts of Iowa and Missouri, but these sections were later reassigned to other area codes.

The 312 area code is also well-known for its association with the city of Chicago. The code was first assigned to Chicago in 1957, and it has been the city's area code ever since. In fact, the 312 area code is so closely associated with Chicago that it is often referred to as the "Chicago area code."

Despite its name, the 312 area code is not limited to the city of Chicago. In fact, the code covers a large area of the Midwest, and it is used by many different communities and businesses. If you are looking for a reliable and concise overview of the 312 area code, then you have come to the right place.

Time Zones With Area Code 312

As of today, there are six time zones in the United States with area code 312. Central Standard Time, Central Daylight Time, Mountain Standard Time, Mountain Daylight Time, Pacific Standard Time, and Pacific Daylight Time are the six time zones. Each of these time zones has a unique area code.The time zone with area code 312 is Central Standard Time. This time zone is in the Central Time Zone, which is in the CST time zone. The CST time zone covers six states in the US: Illinois, Indiana, Iowa, Missouri, Wisconsin, and the western tip of Kentucky. This time zone is five hours behind GMT and observes daylight saving time.

The time zone with area code 312 is Central Daylight Time. This time zone is in the Central Time Zone, which is in the CDT time zone. The CDT time zone covers six states in the US: Illinois, Indiana, Iowa, Missouri, Wisconsin, and the western tip of Kentucky. This time zone is six hours behind GMT and does not observe daylight saving time.

The time zone with area code 312 is Mountain Standard Time. This time zone is in the Mountain Time Zone, which is in the MST time zone. The MST time zone covers six states in the US: Arizona, Colorado, New Mexico, Montana, Utah, and western Texas. This time zone is seven hours behind GMT and observes daylight saving time.

The time zone with area code 312 is Mountain Daylight Time. This time zone is in the Mountain Time Zone, which is in the MDT time zone. The MDT time zone covers six states in the US: Arizona, Colorado, New Mexico, Montana, Utah, and western Texas. This time zone is eight hours behind GMT and does not observe daylight saving time.

The time zone with area code 312 is Pacific Standard Time. This time zone is in the Pacific Time Zone, which is in the PST time zone. The PST time zone covers six states in the US: California, Oregon, Washington, Nevada, Idaho, and westernmost Montana. This time zone is eight hours behind GMT and observes daylight saving time.

The time zone with area code 312 is Pacific Daylight Time. This time zone is in the Pacific