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New Hampshire · Eastern Time

603 Area Code: Manchester, NH

The 603 area code covers Manchester, Nashua, Concord and Derry in New Hampshire, on Eastern Time. Here is the current local time there, and whether you can legally place a solicitation call to a 603 number right now.

Current local time in the 603 area code

Current local time in the 603 area code

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Can you legally call a 603 number right now?

Checking…

DayLegal calling window in New Hampshire
Sunday8:00 AM-9:00 PM
Monday8:00 AM-9:00 PM
Tuesday8:00 AM-9:00 PM
Wednesday8:00 AM-9:00 PM
Thursday8:00 AM-9:00 PM
Friday8:00 AM-9:00 PM
Saturday8:00 AM-9:00 PM

Windows shown are the stricter of the federal TCPA/TSR rule (8 a.m.-9 p.m. local) and New Hampshire's own statute, in the called party's local time. Informational only, not legal advice. Check any number against the full TCPA calling hours calculator.

Area code 603 at a glance

StateNew Hampshire
Principal cityManchester
Time zoneEastern Time
Overlay codesNone
Weekday calling window8:00 AM-9:00 PM local
CountryUnited States

Cities in the 603 area code

These are the main population centers 603 serves. Smaller towns across the same New Hampshire region share the code.

  • Manchester
  • Nashua
  • Concord
  • Derry
  • Dover

Calling 603 numbers legally

New Hampshire has no calling-hour statute stricter than federal law, so the TCPA and the FTC's Telemarketing Sales Rule set the window: solicitation calls only between 8 a.m. and 9 p.m. in the called party's local time. Because the rule follows the called party, a 603 number is on Eastern Time regardless of where you dial from.

Ringless voicemail sits under the same rules as a live call, which is why TCPA compliance matters before you drop to a list. To check a whole list rather than one code, the phone number formatter tags every number with its state so you can segment sends by time zone.

FAQ

603 area code questions

603 is a US telephone area code serving New Hampshire, on Eastern Time. Its principal city is Manchester, and it also covers Nashua, Concord and Derry.
Area code 603 is in the state of New Hampshire. It serves Manchester, Nashua, Concord and Derry, and its principal city is Manchester.
The 603 area code is on Eastern Time (America/New_York). The panel above shows the current local time there, updated live.
It depends on the local time in New Hampshire. New Hampshire has no calling-hour rule stricter than federal law, so the TCPA and the FTC's Telemarketing Sales Rule govern: solicitation calls are permitted only between 8 a.m. and 9 p.m. in the called party's local time. The live verdict above checks the current time against that window for you.
On weekdays, solicitation calls to New Hampshire numbers are permitted 8:00 AM to 9:00 PM local time. Sunday hours are 8:00 AM to 9:00 PM.
Not by itself. 603 is a legitimate New Hampshire area code used by residents and businesses in Manchester and Nashua. Scammers do spoof caller ID to show a local area code, because people answer local numbers more often, so treat an unexpected call asking for payment or personal details with suspicion regardless of the prefix.

Reaching Manchester at scale?

VoiceDrop delivers ringless voicemails in your own AI-cloned voice and two-way SMS to New Hampshire lists, with calling-hour and DNC rules enforced automatically so every drop lands inside the legal window.

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