Area code 603: where is it from? New Hampshire
Area code 603 belongs to New Hampshire (United States).
- Type
- Landline / geographic
- Region
- New Hampshire
- Local time now
- —
- How to dial from abroad
- +1 603 XXX XXXX
- Numbers with reports
- 0
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Area code 603 serves New Hampshire: New Hampshire (all). In service since 1947.
Reported numbers starting with 603
No reports yet for numbers starting with 603. If you got a call, look up the full number and share your experience.
Frequently asked questions
Where is area code 603 from?
Area code 603 belongs to New Hampshire (United States).
How do I call a number with area code 603 from another country?
Dial the country code followed by the full number, like this: +1 603 XXX XXXX. On a mobile phone you can use + instead of the international exit code.
Why am I getting calls from area code 603 if I know nobody there?
An area code shows where the number was assigned, not where the caller is. Telemarketers and scammers use virtual or ported numbers and can even spoof the number shown on screen. Look up the full number to see what other users say before calling back.