Active Area Code

603

New Hampshire
Eastern Time (ET)
Est. 1947
Identify This Caller
PRIMARY
Location
New Hampshire
Manchester
ACTIVE
Coverage
2 Cities
Since 1947

About Area Code 603

Area code 603 serves New Hampshire, covering major cities including Manchester, Nashua. Operating in the Eastern Time (ET), this code was established in 1947.

StateTime ZoneCities
New HampshireEastern Time (ET)Manchester, Nashua

Beware of Spam Calls

Scammers frequently use 603 numbers. Always verify unknown callers before sharing personal information.

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Common Questions

Where is 603?
Located in New Hampshire, serving Manchester and surrounding areas.
What time zone?
Operates in Eastern Time (ET).
When established?
Area code 603 was introduced in 1947.
Used for spam?
Can be used by legitimate and fraudulent callers. Always verify unknown numbers.