Area codes / Rhode Island / 401
The 401 area code
401 is one of the original 1947 area codes in Rhode Island, in the Eastern time zone. Get a local 401 number for your business, shared by everyone who answers it, or bring the 401 number you already have.
401 at a glance
- State
- Rhode Island
- Time zone
- Eastern
- In service since
- 1947
- Overlay
- None: the only code for its area
- Local calls
- Seven-digit dialing within the area code
Get a 401 business number
When you sign up for Onyx Phone, you pick a local number by area code: search 401, 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.
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 401 customers
Local calls within 401 can be dialed with seven digits. 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 401 customers see who's calling.
Questions about area code 401
What state is area code 401?
Area code 401 is in Rhode Island.
What time zone is area code 401 in?
Area code 401 is in the Eastern time zone.
Is 401 an overlay area code?
No. Today 401 is the only area code for its part of Rhode Island.
Can I get a 401 business number?
Onyx Phone sells US local numbers. When you pick your number, search the 401 area code; which numbers are free changes daily.
Can I keep the 401 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.