Prefix Information

The prefix 503 is part of area code 203 serving Bridgeport, Connecticut.

This exchange contains 10,000 possible phone numbers (203-503-0000 through 203-503-9999).

Browse Numbers in This Prefix

203-503-0000-0999 203-503-1000-1999 203-503-2000-2999 203-503-3000-3999 203-503-4000-4999 203-503-5000-5999 203-503-6000-6999 203-503-7000-7999 203-503-8000-8999 203-503-9000-9999

Sample Numbers

(203) 503-0000 (203) 503-1234 (203) 503-2000 (203) 503-3333 (203) 503-4444 (203) 503-5555 (203) 503-6000 (203) 503-7777 (203) 503-8888 (203) 503-9999