Area codes / Connecticut / 475
The 475 area code
475 is an area code in Connecticut, in the Eastern time zone. Get a local 475 number for your business, shared by everyone who answers it, or bring the 475 number you already have.
475 at a glance
- State
- Connecticut
- Time zone
- Eastern
- In service since
- 2009
- Overlay
- Shares its area with 203
- Local calls
- Dialed with all ten digits (area code and number)
Get a 475 business number
When you sign up for Onyx Phone, you pick a local number by area code: search 475, narrow it by the next three digits or the last four if you want something memorable, and it's yours on the spot. Which numbers are free changes daily. If you don't find one you like, 203 covers the same area.
The number rings everyone you assign to it, in the browser, on the iPhone and Android apps, and on desk phones, and texts from it are unlimited once US carriers approve your business. Your plan includes one number for each user, and more numbers are $5 a month.
Calling 475 customers
Local calls in 475 are dialed with all ten digits: the area code, then the number. Callers are on Eastern time, so set your business hours to match if most of your customers are here.
Calls from Onyx Phone show your business number, and once your business is verified, your caller ID name too, so 475 customers see who's calling.
Questions about area code 475
What state is area code 475?
Area code 475 is in Connecticut.
What time zone is area code 475 in?
Area code 475 is in the Eastern time zone.
Is 475 an overlay area code?
Yes. 475 shares its area with 203. Numbers in either code ring the same region, and local calls there are dialed with all ten digits.
Can I get a 475 business number?
Onyx Phone sells US local numbers. When you pick your number, search the 475 area code; which numbers are free changes daily. If none are free, 203 covers the same area.
Can I keep the 475 number I already have?
Yes. Moving a number to Onyx Phone is free on every plan and usually takes 3 to 7 business days. You answer on a temporary number until it moves.
Included on every plan
Starter is $17, Business is $29, Scale is $42 per user a month, or less billed yearly. The plan includes a business number for each user and unlimited calling and texting in the US and Canada. Every plan starts with a 7-day free trial, and moving your current number over is free.
Area code data from the North American Numbering Plan Administrator (NANPA), file of October 24, 2026.