NEW HAMPSHIRE · AREA CODE GUIDE
603 area code location: Manchester and Nashua, New Hampshire
- Local date and time
- Eastern Time
Map data: UCLA Geoportal (2015) · NANPA · Statistics Canada (Open Government Licence – Canada) · US Census Bureau, checked 26 September 2026. Boundaries are approximate.
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Download the 603 area code map
603 area code at a glance
- State
- New Hampshire
- Primary cities
- Manchester, Nashua, and Concord
- Established
- Time zone
- Eastern Time
- New code planned
- No, as of 22 September 2026
603 is one of the original 1947 area codes and is still New Hampshire's only one.
An area code does not show where a caller is now.
Rules for answering calls in New Hampshire
General information with its sources, not legal advice. All sources checked 2 November 2026. An area code does not show where a caller is.
Recording calls
In New Hampshire, willfully intercepting a telecommunication or oral communication without the consent of all parties is a crime, with exceptions set out in the law.
Source: N.H. RSA 570-A:2, I and I-a
In New Hampshire, a person whose communication is intercepted, disclosed, or used in violation of the wiretap law may recover actual damages of at least $100 a day or $1,000, whichever is higher, punitive damages, and reasonable attorney's fees.
Source: N.H. RSA 570-A:11
Sources: NANPA area code listing, NANPA places by area code. Checked .
Business phone numbers in area code 603, answered by an AI agent
A local number for Manchester, Nashua, and Concord, New Hampshire, with an AI receptionist that takes caller details, answers the questions you give it, and books appointments. Numbers depend on what carriers have left.