Area Code 603 – New Hampshire

Area Code Details

Area Code

603

State / Province

New Hampshire

Country

United States

Time Zone

ET

IANA Zone

America/New_York

Country Code

US

Cities & Counties

Hillsborough County

Manchester, Nashua

Merrimack County

Concord

Nearby Area Codes

• 602 — Arizona (US • MT)
• 604 — British Columbia (CA • PT)
• 601 — Mississippi (US • CT)
• 605 — South Dakota (US • CT)
• 606 — Kentucky (US • ET)
• 607 — New York (US • ET)

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Frequently Asked Questions

What time zone is area code 603 in?

Area code 603 is in the ET time zone (America/New_York). It serves New Hampshire, United States.

Where is area code 603 located?

Area code 603 covers New Hampshire in United States. Major cities include Manchester, Nashua, Concord.

What cities use area code 603?

Cities served by area code 603 include: Manchester, Nashua, Concord.

What is the current time in area code 603?

The live clock on this page shows the real-time current time for area code 603 (ET time zone). It updates every second.

Is area code 603 in the US or Canada?

Area code 603 is in United States (US), specifically in New Hampshire.

What other area codes are in New Hampshire?

Area code 603 is the only area code listed for New Hampshire.

How do I call area code 603 from another time zone?

When calling area code 603, remember it's in the ET time zone. Use the time converter above to find the best time to call.

What counties does area code 603 cover?

Area code 603 covers: Hillsborough County, Merrimack County.