Connecticut area codes
- Area codes in
- 4
- State
- Connecticut
- Connecticut is served by 4 area codes, from 203 in 1947 to 959 in 2014. 2 of them are overlays, added as older codes filled up.
- Updated 8 October 2026
Now in Connecticut
Eastern Time · UTC−5, UTC−4 in summer
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Eastern Time
Typical business hours, 9 to 5 Monday to Friday.
Typical business hours, 9 to 5 Monday to Friday, shown as the blue arc. A guide to when a real Connecticut office is likely to answer. It says nothing about who called you.
01
All area codes in Connecticut
Connecticut is served by 4 area codes. 203 is the oldest, in service since 1947; 959 is the newest, activated in 2014.
02
Connecticut area codes by city
These are the Connecticut cities served by more than one area code, or whose code also covers a wider area.
03
Overlay codes and dialling rules in Connecticut
2 of Connecticut’s 4 area codes are overlays — a second code laid over an existing footprint instead of splitting it. Wherever an overlay operates, local calls require the full ten-digit number.
04
Spam call reports in Connecticut
These Connecticut area codes drew the most reports to the FTC in the 30 days to 8 October 2026. The figures describe numbers displaying each code, which caller ID spoofing can fake.
Most reported Connecticut area codes · last 30 days
| # | Code | Primary city | Reports (30 days) |
|---|---|---|---|
| 1 | 860 | Hartford | 607 |
| 2 | 475 | New Haven | 378 |
| 3 | 203 | Bridgeport | 372 |
| 4 | 959 | Hartford | 235 |
A number listed here may itself be a spoofing victim rather than the caller. These are unverified consumer reports.
Source: FTC Do Not Call Reported Calls Data, unverified consumer reports, retrieved 8 October 2026. Request a correction. Month-over-month figures appear once two complete 30-day windows exist.
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05
Questions
How many area codes does Connecticut have?
Connecticut has 4 area codes: 203, 475, 860, 959.
What is the main area code for Bridgeport?
The main area code for Bridgeport is 203.
Which Connecticut area code is oldest?
Area code 203 is the oldest in Connecticut, in service since 1947.
Do I need to dial ten digits in Connecticut?
Yes, wherever an overlay operates. 2 of Connecticut’s area codes are overlays, and local calls within an overlay area require the full ten-digit number.
Which Connecticut area code gets the most spam calls?
Area code 860 (Hartford) drew the most reports of any Connecticut code in the 30 days to 8 October 2026, with 607 numbers reported.
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