Area code lookup
What area code is 603?
Here's everything about it.
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Caller ID · NPA-NXX-XXXXLive
Area code
603
Location
Statewide New Hampshire, NH
Local time
--:--:-- --
Statewide New Hampshire
603 at a glance
SummaryState
New Hampshire
Time zone
Eastern (ET)
UTC offset
UTC−5 / −4 DST
Observes DST
Yes
Country
United States
Cities served by 603
Statewide New HampshireStatewide New Hampshire
Where 603 sits on the map
No overlayCoverage area
About the 603 region
603 covers Statewide New Hampshire in New Hampshire. It currently has no overlay code, so seven-digit dialing may still be possible within the region.
Who called me from 603?
Community reportsNo community reports for 603 numbers yet. Be the first to report one.
Got a call from 603 that isn't listed?
Frequently asked questions
FAQWhat area code is 603?+–
603 is a telephone area code serving Statewide New Hampshire in New Hampshire, United States.
Where is area code 603 located?+–
It covers Statewide New Hampshire in New Hampshire.
What time zone is 603?+–
603 observes Eastern (ET), which is UTC−5 / −4 DST and follows daylight saving time.
Can I get a 603 phone number?+–
Yes — most mobile carriers and VoIP providers let you request a 603 number regardless of where you physically live.