The 475 area code is located in the state of Connecticut, and according to Intelius data, covers roughly 18,468 phone numbers and 21,379 listings across 247 prefixes.
This is a General Purpose Code, in service since December 12, 2009.
Area code 475 is part of an overlay complex shared with:
Area code 475 was split from area code 203.
Local calls within area code 475 require 10 digits dialing, while long-distance calls require 1 plus 10 digits dialing.
Have you received a call from a number with a 475 area code? Figure out who is calling you by performing a reverse phone lookup search. Intelius can provide you with a phone report that includes (when available) original line type and carrier, the number owner’s name, last known address and past addresses, age, possible relatives, and more.
| County Population (2025) | 337,697 |
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| County Population (2025) | 463,349 |
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| County Population (2025) | 578,741 |
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| County Population (2025) | 640,482 |
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