Detailed Lookup for 203, 860, 475, 959
Detailed Lookup for 203, 860, 475, 959
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Connecticut Area Codes: A Complete Guide
Connecticut has four area codes serving different regions, and knowing which one applies to which city can help with everything from phone identification to business setup.
Map of Connecticut Area Codes
What Are the Area Codes in Connecticut?
Here’s a detailed look at the list of Connecticut area codes:
- 203: Established in 1947, covering cities like New Haven, Stamford, and Bridgeport
- 860: Created in 1995 to serve Hartford, New London, and Waterbury
- Covers the same region as 203}
- Introduced in 2014 to support growing demand}
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
Originally, all of Connecticut was served by area code 203.
More historical details can be found on Wikipedia's area code page.
Why Connecticut Uses Overlay Codes
To avoid splitting cities into new area codes, overlays like 475 and 959 allow new numbers in the same region.
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
A virtual number with a 203 or 860 area code can improve trust and conversions.
Check out CT virtual numbers from Bling.
Benefits of a Connecticut VoIP Phone System
They offer features like call recording, call forwarding, voicemail to email, and more.
Explore VoIP systems for Connecticut that support 203, 860, 475, and 959 numbers.
Getting a Business Phone Number with a CT Area Code
Whether you're launching a new business in Stamford or Hartford, having a local number matters.
Start by selecting a provider like Bling to get a Connecticut business number. Learn more at this page.
Complete Business Phone System in Connecticut
You’ll want a phone system that supports call queues, IVR, CRM integration, and voicemail.
Set up a complete business phone system in Connecticut with Bling Cloud’s scalable solution.
Spam & Robocalls from CT Area Codes
If you receive a suspicious call from 475 or 959, be cautious and validate using number lookup tools.
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?
The 203 area code is the original, dating back to 1947.
Q2: Why were 475 and 959 created?
They are overlays virtual Connecticut phone number for 203 and 860, respectively.
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.
Whether you're in Stamford or Hartford, or managing calls from out-of-state, a local number improves credibility and reach.
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