475 area code: New Haven, Connecticut
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- State
- Connecticut
- Example locality
- New Haven
- Time zone
- Eastern Time
- Country
- United States
Where is the 475 area code?
475 is a geographic area code associated with New Haven, Connecticut, United States.
Communities associated with 475 in telephone numbering records include New Haven, Stamford, Bridgeport, Norwalk, and Danbury. These are examples, not a complete list of places served or a map of municipal boundaries.
The area code tells you about a number’s assigned region. It does not locate a person or establish who is calling. For that, start with the full phone number and review any available evidence in context.
Which area codes are used alongside 475?
203 are listed with 475 in NANPA’s numbering records. These codes can serve overlapping areas; they do not necessarily have identical boundaries or identify the same city. Use the complete phone number when checking a call.
Sources and verification
Sources checked on September 15, 2026.
Numbering plans describe allocations and dialing rules. They do not verify the identity or current location of a caller.
- NANPA: NPA database
Source effective date: September 15, 2026.
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475 area code and phone lookup FAQ
475 is a geographic area code associated with New Haven, Connecticut, United States. Communities associated with 475 in telephone numbering records include New Haven, Stamford, Bridgeport, Norwalk, and Danbury. These are examples, not a complete list of places served or a map of municipal boundaries.
New Haven uses Eastern Time. This describes the listed locality, not the current location of a caller.
For local calls within 475, NANPA lists ten-digit dialing: the three-digit area code followed by the seven-digit number. The record also permits 1, then the three-digit area code and the seven-digit number, depending on your provider.
Mobile and internet phone services may use their own dialing instructions; check your provider for calls outside this area or toll calls. For a DeepSearch lookup, enter the full number as +1 475 followed by the remaining seven digits. NANPA area-code database.
NANPA records 2009-12-12 as the in-service date for 475. This is the numbering area’s activation date, not the date a particular phone number was assigned.
203 are listed with 475 in NANPA’s numbering records. These codes can serve overlapping areas; they do not necessarily have identical boundaries or identify the same city. Use the complete phone number when checking a call.
No. An area code is shared by many numbers. Enter the complete phone number, including its area code, to research a particular number with DeepSearch.
No. 475 is associated with New Haven, Connecticut, but a person can keep a number after moving or use it while traveling. Caller ID can also be spoofed, so the displayed number does not confirm who placed the call.
No. Available records vary by number and source. DeepSearch may return a possible match, public-source context, or only number information. If caller ID was spoofed, information about the displayed number may describe someone other than the person who called.
Your report brings together names associated with the number, public profiles or listings, and phone details such as region, line type, or carrier when available. Source links let you check the information behind a match.
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