New Hampshire
Area Code
603
Phoning the Granite State? Get through to Manchester, Nashua, or the White Mountains for cheap per minute rates with nothing hidden. One state, one code (603). Pay as you go VoIP calls straight from your browser.
Dialing New Hampshire, Step by Step
The state uses the same dialing pattern as the rest of the US.
Exit Code
Calling from another country? Begin with your local exit code, for example 00 throughout Europe.
US Code (+1)
Dial +1, the dialing code that connects you to the USA.
Area Code (603)
Dial 603 and then the 7-digit local number.
A State With Just One Code
New Hampshire belongs to the small group of states served by a single area code, 603. Even so, all calls still require the full 10 digits, that is 603 plus the number.
City Codes Across New Hampshire
Every city below shares the same 603 area code.
| City | County | Area Code |
|---|---|---|
| Manchester | Hillsborough | 603 |
| Nashua | Hillsborough | 603 |
| Concord | Merrimack | 603 |
| Dover | Strafford | 603 |
| Rochester | Strafford | 603 |
| City | County | Area Code |
|---|---|---|
| Keene | Cheshire | 603 |
| Portsmouth | Rockingham | 603 |
| Laconia | Belknap | 603 |
| Lebanon | Grafton | 603 |
| Berlin | Coos | 603 |
New Hampshire Calls That Cost
Just Pennies a Minute
From a Manchester business line to family in Nashua, Intercalling reaches New Hampshire landlines and mobiles over high-quality VoIP, and you only pay for the minutes you actually use.
- Low per minute rates to Manchester & Nashua
- Runs in any browser (Chrome, Safari, Edge)
- Pay as you go, with no connection charges
- Crisp, clear call audio
Local Presence
Direct routing into NH exchanges, so your call lands like a local one.
Time Zones
The state keeps Eastern Time (ET) year round.
Secure
Every call is protected with TLS encryption.
Fast
WebRTC gets you connected within seconds.
Frequently Asked Questions
Which area code does New Hampshire use?
There is just one, 603, and it serves the entire state.
What is the current time in New Hampshire?
It sits in the Eastern Time Zone (UTC-5), the same clock as New York.
Can I dial New Hampshire mobile phones?
Yes. With Intercalling, both landlines and mobiles in New Hampshire are billed at the same low per minute rate.
Is 603 really the state's only code?
It is. 603 is the sole area code in New Hampshire today, putting it among the handful of states covered by a single code.
Ready to dial New Hampshire?
Be connected within seconds and pay only for what you use. No card needed to create an account.
Call from any browser
No app and no SIM. Place the call from your computer or phone in seconds.
Low rates to 190+ destinations
Clear per minute pricing, shown before you dial. Pay as you go, no monthly fee.
One balance, every device
Start on your laptop, continue on your phone, all at the same low rate.