Caller ID for
Area code 475
Area code 475 New Haven, Connecticut
Area code 475 is in Connecticut, with numbers assigned in New Haven, Stamford, Bridgeport and 25 more places. It’s 12:11 AM there now.
- State
- Connecticut4 area codes in Connecticut
- Time zone
- Eastern12:11 AM there now
- Exchanges
- 29228 places
- Overlay
- 203Same area, 10-digit dialing
- No sign-up
- We never contact the number
- Spam risk included
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Where area code 475 is
Numbers in 475 are assigned to 28 places in 3 counties: Fairfield County, New Haven County and Litchfield County.
No single place dominates: New Haven, the largest, has 15% of the exchanges.
- New Haven43
- Stamford27
- Bridgeport25
- Norwalk22
- Danbury18
- Waterbury18
- Greenwich8
- Trumbull Center7
- Meriden7
- Wallingford Center6
- Milford city6
- Fairfield University6
- Newtown6
- Naugatuck5
- Branford Center5
- Cheshire Village5
- Darien Downtown5
- Woodbury Center4
- Old Greenwich4
- Byram4
- Westport Village4
- New Canaan4
- Ridgefield3
- Redding Center3
Phone companies in 475
292 blocks of numbers in 475 are held by 29 phone companies. The most belong to Inteliquent (65), Verizon Wireless (47) and T-Mobile (45).
A large share, about 53%, belongs to competitive and internet phone carriers; wireless networks hold 38% and local phone and cable companies 9%.
A block’s holder is the company it was first assigned to; numbers can move to other carriers since.
History and overlays
475 went into service in 2009, added to the area of 203.
203 (since 1947) shares the same area, so a new number there can get any of these codes and local calls are dialed with all 10 digits.
122 new exchanges were assigned since 2021, the latest in October 2026.
Calling 475
It’s 12:11 AM Eastern time in 475 right now.
From elsewhere in the U.S., dial 1, 475 and the 7-digit number; inside the area, all 10 digits too.
Nearby area codes
Connecticut has 4 area codes: 203, 475, 860 and 959.
- 631 · Brentwood, NY · about 29 mi
- 934 · Riverhead, NY · about 32 mi
- 914 · Mount Kisco, NY · about 36 mi
- 959 · Hartford, CT · about 43 mi
- 860 · Hartford, CT · about 45 mi
- 329 · Poughkeepsie, NY · about 47 mi
From the North American Numbering Plan Administrator’s area code and exchange records (10/22/2026) and U.S. Census place and county names. Places and companies are where number blocks were assigned, not where anyone lives or which carrier a number uses today.
Map of the 475 area code
Map of the 475 area code around New Haven, Stamford and Bridgeport, Connecticut.
Cities on the map
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Questions about 475
Where is area code 475?
In Connecticut, covering New Haven, Stamford and Bridgeport and other places across 3 counties.
What time zone is 475 in?
Eastern time. It was 12:11 AM there when this page loaded.
Is 475 an overlay?
Yes. 203 serves the same area, so dial all 10 digits for local calls.
Which phone companies have 475 numbers?
29 companies hold blocks; the most belong to Inteliquent, Verizon Wireless and T-Mobile. About 38% of blocks are wireless.
Is 475 running out of numbers?
Not on record. 122 new exchanges have been assigned since 2021.