Area code 203
Area code 203 serves Bridgeport and nearby parts of Connecticut, including New Haven, Stamford and Waterbury. It is on Eastern Time, which observes daylight saving time. 475 is an overlay for the same area.
Area code 203 at a glance
| State | Connecticut (CT) |
| Main city | Bridgeport |
| Time zone | Eastern Time |
| UTC offset | UTC−5 in winter, UTC−4 in summer |
| Daylight saving time | Yes |
| Overlay codes | 475 |
Cities in 203
- Bridgeport
- New Haven
- Stamford
- Waterbury
An area code shows where a number was first assigned. Mobile numbers keep their area code when people move, so the person you’re calling may be somewhere else.
When you can call a 203 number
Federal telemarketing rules under the TCPA allow sales calls between 8 AM and 9 PM in the called person’s local time. Here is that window for a 203 number, shown in your own time zone.
General information, not legal advice. Some states add rules for Sundays, holidays or the number of calls. See our calling hours guide.
| If you’re on | You can call 203 between |
|---|---|
| Eastern | 8:00 AM to 9:00 PM |
| Central | 7:00 AM to 8:00 PM |
| Mountain | 6:00 AM to 7:00 PM |
| Arizona | 5:00 AM to 6:00 PM |
| Pacific | 5:00 AM to 6:00 PM |
See the time in 203 without leaving your CRM
Parse is a free Chrome extension that shows the local time and weather beside every phone number on the page.
Questions about 203
What time zone is area code 203?
Area code 203 is on Eastern Time. It observes daylight saving time.
Where is area code 203?
Area code 203 is in Connecticut. Its main city is Bridgeport, and it also covers New Haven, Stamford and Waterbury.
What are the legal hours to call a 203 number?
Under the federal TCPA, sales calls are allowed from 8 AM to 9 PM in the called person’s local time. Personal and informational calls are not limited by these hours.
What area codes overlay 203?
475 covers the same area as 203, so numbers in the same town can have either code.