State
Area Code 203
New Haven, Stamford, Bridgeport, Connecticut
Local time now
…
Time zone
Eastern
Main cities
New Haven, Stamford, Bridgeport, Norwalk, Danbury, Waterbury
Overlays
In service since
1947
When you can make sales calls to 203 numbers
| Monday – Friday | 9 AM – 8 PM |
| Saturday | 9 AM – 8 PM |
| Sunday | 9 AM – 8 PM |
In the called person's local time. Guidance, not legal advice.
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Other area codes in Connecticut
Questions about area code 203
- Where is area code 203?
- Area code 203 is in Connecticut, covering New Haven, Stamford, Bridgeport, Norwalk.
- What time zone is area code 203?
- Eastern time.
- When can telemarketers call a 203 number?
- Federal rules allow sales calls from 8 AM to 9 PM local time, and Connecticut has stricter hours shown on this page.
- Is 203 a toll-free number?
- No. 203 is a regular area code for Connecticut. Toll-free codes are 800, 833, 844, 855, 866, 877 and 888.