603 Area Code

What Is Area Code 603?

Area code 603 is one of the original 86 area codes created by AT&T and Bell Labs in 1947. It covers the northeastern corner of the United States, including the states of Maine, New Hampshire, and Vermont.

How Many Cities In The US Use 603 As Their Area Code?

The area code 603 is used in a few different cities in the United States. How many exactly? Keep reading to find out!The 603 area code is used in the states of New Hampshire, Maine, and Vermont. All of these states are located in the northeastern part of the country. Together, they make up the 603 area code region.

The 603 area code was created in 1947. At that time, it was only used in New Hampshire. In 1957, it was extended to include Maine. In 1992, it was extended to include Vermont.

Today, there are six cities in the United States that use the 603 area code. They are: Manchester, Nashua, Concord, Portsmouth, Dover, and Rochester.

Why Should I Lookup Numbers With Area Code 603?

Looking up numbers with area code 603 can be helpful for a number of reasons. For one, you may be trying to contact someone in that area code, or you may be interested in learning more about the people who live in that area. Additionally, looking up numbers with area code 603 can be a great way to learn more about the history and culture of the area.