Where is the 603 area code?

The 603 area code covers Manchester, New Hampshire (Eastern Time).

Are calls from 603 spam?

Not all 603 calls are spam, but scammers often spoof local 603 numbers ("neighbor spoofing") so a call looks familiar. Look up the specific number to check.

603 area code

Manchester, New Hampshire · Eastern Time

The 603 area code serves Manchester, New Hampshire. Getting a call from 603? It may be a real local caller — but scammers frequently spoof local 603 numbers so the call looks familiar (“neighbor spoofing”), even when they’re nowhere near Manchester.

Recently reported 603 numbers

No 603 numbers have been reported here yet. If a 603 number called you, look it up above and add a report to warn others.

Common scams using 603 calls

🏛️ IRS / Tax Scam

"You owe back taxes — pay now or be arrested."

🪪 Social Security Scam

"Your Social Security number has been suspended."

🚗 Auto Warranty Robocall

"Your car's extended warranty is about to expire."

📦 Package / Amazon Scam

"There's a problem with your delivery / Amazon order."

Area-code information reflects where numbers in 603 are normally assigned. Caller ID can be spoofed, so a 603call may not actually originate from Manchester, New Hampshire.