Complete Guide for 203, 860, 475, 959
Complete Guide for 203, 860, 475, 959
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Connecticut Area Codes: What You Need to Know About 203, 860, 475, and 959
If you're trying to figure out area codes in Connecticut, you're not alone.
Map of Connecticut Area Codes
What Are the Area Codes in Connecticut?
Connecticut is served by a combination of original and overlay area codes: 203, 860, 475, and 959.
- 203: Established in 1947, covering Southwestern Connecticut
- 860: Created in 1995 to serve Hartford, New London, and Waterbury
- 475: An overlay to 203, implemented in 2009}
- 959: Overlay for 860}
Which Cities Use Each Area Code?
Here’s how the area codes are distributed across Connecticut cities:
203 and 475 Area Codes
- Stamford
- Bridgeport
- New Haven
- Norwalk
- Danbury
860 and 959 Area Codes
- Hartford
- New Britain
- New London
- Middletown
- Manchester
History of Connecticut Area Codes
With population and business growth, 860 was added in 1995.
More historical details can be found on Wikipedia's area code page.
Why Connecticut Uses Overlay Codes
This requires 10-digit dialing, but it’s a more user-friendly approach for residents and businesses.
Learn more about 10-digit dialing from the FCC guide.
How to Identify a Connecticut Phone Number
Receiving a call from 860 or 203? Use a phone number lookup tool.
Setting Up a Virtual Connecticut Phone Number
Choose a provider that offers reliable VoIP and virtual number setup.
Check out CT virtual numbers from Bling.
Benefits of a Connecticut VoIP Phone System
VoIP systems allow you to use a Connecticut area code from anywhere in the world.
Explore VoIP systems for Connecticut that support 203, 860, 475, and 959 numbers.
Getting a Business Phone Number with a CT Area Code
It gives you credibility, local identity, and helps build customer trust.
Start by selecting a provider like Bling to get a Connecticut business number. Learn more at this page.
Complete Business Phone System in Connecticut
Running a business in Connecticut?
Set up a complete business phone system in Connecticut with Bling Cloud’s scalable solution.
Spam & Robocalls from CT Area Codes
Spam and robocalls are a growing issue across all states including Connecticut.
Block scam calls using CallBlocker or read NANPA updates for changes to Connecticut codes.
Video: How Area Codes Work
Watch this YouTube video on how area codes are assigned and why overlays matter.
FAQs About Connecticut Area Codes
Q1: What is the oldest area code in Connecticut?
203 was the first and only area code Connecticut business phone number until 1995.
Q2: Why were 475 and 959 created?
To handle number exhaustion in their respective regions.
Q3: Do I need to dial all 10 digits in Connecticut?
Yes, because of the overlay system, 10-digit dialing is mandatory for all local calls in Connecticut.
Q4: Can I choose my area code when getting a new number?
Some mobile carriers also offer this option during signup.
Q5: Is 959 a real area code or a scam?
However, like any area code, it can be spoofed by scammers.
From personal calls to business communication, choosing the right area code makes a difference.
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