Prefix Information
The prefix 621 is part of area code 203 serving Bridgeport, Connecticut.
This exchange contains 10,000 possible phone numbers (203-621-0000 through 203-621-9999).
Phone numbers with prefix 621 in area code 203. Location: Bridgeport, Connecticut.
The prefix 621 is part of area code 203 serving Bridgeport, Connecticut.
This exchange contains 10,000 possible phone numbers (203-621-0000 through 203-621-9999).