🇺🇸 475 area code
Area code 475 covers Connecticut, New Haven, Stamford and Norwalk and the surrounding area in Connecticut. It shares that territory with 203, so the same neighbourhood can have numbers in any of them. Enter a 475 number below for a free check before you call back.
- Location: Connecticut
- Time zone: Eastern (UTC−5)
- In service since December 12, 2009
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Area code 475 at a glance
- Area code
- 475
- Location
- Connecticut, United States
- Main cities
- Connecticut, New Haven, Stamford, Norwalk, Bridgeport, Greenwich
- Time zone
- Eastern (UTC−5)
- Local time now
- —
- In service since
- December 12, 2009
- Created from
- 203
- Overlay codes
- 203
- Local calls
- Dial 10 digits
- Number format
- (475) 555-0123
- From abroad
- +1 475 555 0123
Cities in the 475 overlay area
- Connecticut
- New Haven
- Stamford
- Norwalk
- Bridgeport
- Greenwich
- Waterbury
- Milford
- Danbury
- Meriden
Is a 475 call a scam?
An area code tells you where a number was first assigned, not where the caller is. Mobile numbers keep their area code when people move, and internet (VoIP) numbers can be picked in any area code — so a 475 number can be calling from anywhere.
Robocallers exploit that with "neighbor spoofing": showing a 475 number to people in Connecticut because a local-looking call is more likely to be answered. If a 475 call claims to be your bank, the IRS or a delivery company, hang up and call the official number yourself.
About area code 475
475 entered service on December 12, 2009, as an overlay on 203, which had run short of numbers.
It is part of the 203/475 overlay: the codes cover the same area, and a new line there can be given a number in any of them. Two neighbours — or two phones in one household — can have different area codes. That is also why local calls need the full ten digits.
Because 475 overlays the same ground, the cities listed are those of the codes it shares with.
Area codes
More area codes in Connecticut
All Connecticut area codes · Every North American area code · International country codes
よくある質問
Area code 475 questions
Sources: NANPA NPA database (11/04/2026) and Google libphonenumber. Area codes show where a number was assigned, not where its owner is today.
Where is area code 475?
Area code 475 is in Connecticut, United States. It covers Connecticut, New Haven, Stamford, Norwalk, Bridgeport and Greenwich.
What time zone is area code 475?
475 is in the Eastern (UTC−5) time zone, and observes daylight saving time.
What area codes overlay 475?
203 serves the same area as 475. Numbers in all of them are local to one another.
When did area code 475 start?
475 entered service on December 12, 2009, created from 203.
How do I find out who called me from 475?
Enter the full number in the lookup at the top of this page. The free check confirms whether the number is valid and shows its carrier, line type and region; a full report adds owner and public-web records where they are available.
Why am I getting calls from area code 475?
If you live in or near Connecticut, they may be genuinely local — or robocalls spoofing a local-looking number. Unknown 475 callers who will not leave a message are best looked up before you call back.