603 Area Code

Get a New Hampshire, New Hampshire phone number

A 603 phone number is related to New Hampshire, New Hampshire. Phoner: Second Phone Number, allows you to set up multiple phone numbers in minutes for any US area code that you need a number for. With Phoner you use your current mobile device so there’s no need to change your permanent address, purchase a new phone, or carry multiple mobile devices around with you. Perfect for your small business, dating communication, or buying and selling goods online.

Get your new area code 603 phone number today with Phoner on iOS, Android, or desktop. Download and start texting, calling, recording phone calls, or using caller ID lookup.

New Hampshire map showing location of area code 603 within the state

603 Phone Number


New Hampshire



Major City:

New Hampshire

The 603 area code is in New Hampshire, United States.

Area code 603 is in the Eastern time zone (UTC -5).

This area code serves the entire state of New Hampshire.

Nearby counties:

New Hampshire's 603 area code covers all 10 counties: Hillsborough County, Rockingham County, Merrimack County, Strafford County, Grafton County, Cheshire County, Belknap County, Carroll County, Sullivan County, and Coos County.

Other nearby area codes includes:

Area Code 207 - Portland

Area Code 413 - Springfield

Area Code 802 - Vermont

Area Code 351/978 - Lowell

Area Code 354/450/579 - Granby

Area Code 468/819/873 - Sherbrooke

History of 603

Area Code

The New Hampshire area code 603 is one of the original 86 area codes created by AT&T and the Bell System in 1947 when the North American Numbering Plan was designed. It still serves the entire state of New Hampshire.

Things To Do Near

Area Code 603

There are many activities for locals + visitors to see and do in the 603 area code (New Hampshire County).

Things to do in New Hampshire, New Hampshire tend to includes Mount Washington, Franconia Notch State Park, White Mountain National Forest and much more.

Mount Washington

The highest peak in the Northeastern United States, it's known for its unpredictable weather and scenic views accessible by the Mount Washington Auto Road or the Cog Railway.

Franconia Notch State Park

This park features the stunning Flume Gorge, Cannon Mountain, and the Old Man of the Mountain Historic Site.

White Mountain National Forest

A vast wilderness area with hiking trails, scenic drives, and opportunities for camping and wildlife viewing.


in New Hampshire

Some of the universities, colleges, higher education establishments in area code 603 are:

Dartmouth College

Mount Washington College

New Hampshire College

University of New Hampshire

This is not an exhaustive list, there are additional schools that may not be included

Why do people sign up for a virtual 603 number with Phoner?

People sign up for 603 virtual US phone numbers for a number of reasons.

For business

To be seen as local vendors - local numbers are more trustworthy than out-of-state phone numbers

For marketing purpose

So customers can remember their numbers easily or to be seen as local vendors as local numbers are more trustworthy than out-of-state phone numbers


To give online dating matches a 2nd phone number until they’ve gone on a date and trust each other

To buy and sell goods

For Craigslist, Facebook, eBay purchases or sales so that people don’t have your personal information and don’t bother you after the sale or purchase has been made

Nearby Codes

Frequently asked questions about local numbers

Can I buy a local 603 New Hampshire phone number?

Yes you can. To purchase a 603 number, download Phoner here, select a ‘United States’ number followed by ‘New Hampshire’ as the state. Once you have chosen an area code you can choose a number of your choice. Once you have selected a number to make calls or send texts you can subscribe and enjoy a 3 day free trial.

What are the other New Hampshire local area codes?

You can find the New Hampshire local area codes here.

Can I port my existing 603 number to Phoner?

Yes, you can port your 603 number to Phoner. We are working on an automated process, for now please email our support team so they can manually port your number.

Why Use Phoner

Phoner allows you to purchase and activate multiple phone numbers across the US without the need for multiple phones. Get a second phone number for area code 603 - whether it’s a business phone number, dating phone number, or a phone number for buying & selling goods on Craigslist, Facebook, eBay. Select the area code 603 and start texting or calling today.