New Hampshire
Area Code
603
Connecting to the Granite State? Reach Manchester, Nashua, or the White Mountains instantly. One state, one code (603). Crystal clear VoIP calls directly from your browser.
How to Call New Hampshire
New Hampshire follows standard US dialing procedures.
Exit Code
If calling from abroad, dial your country's exit code (e.g., 00 for Europe).
US Code (+1)
Dial +1. This is the country code for the USA.
Area Code (603)
Dial 603 followed by the 7-digit number.
The Single Code State
New Hampshire is one of the few states with a single area code: 603. However, you must still dial the full 10 digits (603 + Number) for all calls.
New Hampshire City Codes
All cities use the 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 |
Call New Hampshire for
Pennies per Minute
Whether it's business in Manchester or family in Nashua, StartACall connects you to New Hampshire landlines and mobiles using high-quality VoIP technology.
- Instant connection to Manchester & Nashua
- Works on any browser (Chrome, Safari, Edge)
- No hidden connection fees
- Crystal clear audio quality
Local Presence
Call like a local with direct routing to NH exchanges.
Time Zones
New Hampshire is in the Eastern Time Zone (ET).
Secure
TLS encryption for all calls.
Fast
Connect in seconds via WebRTC.
Frequently Asked Questions
What is the area code for New Hampshire?
New Hampshire uses a single area code: 603. It covers the entire state.
What time is it in New Hampshire?
New Hampshire is in the Eastern Time Zone (UTC-5), the same as New York.
Can I call New Hampshire cell phones?
Yes, StartACall allows you to call both landlines and mobile phones in New Hampshire for the same low rate.
Is 603 the only area code?
Yes, 603 is currently the only area code serving New Hampshire, making it one of the few states with a single code.
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