Prefix Information

The prefix 503 is part of area code 445 serving Philadelphia, Pennsylvania.

This exchange contains 10,000 possible phone numbers (445-503-0000 through 445-503-9999).

Browse Numbers in This Prefix

445-503-0000-0999 445-503-1000-1999 445-503-2000-2999 445-503-3000-3999 445-503-4000-4999 445-503-5000-5999 445-503-6000-6999 445-503-7000-7999 445-503-8000-8999 445-503-9000-9999

Sample Numbers

(445) 503-0000 (445) 503-1234 (445) 503-2000 (445) 503-3333 (445) 503-4444 (445) 503-5555 (445) 503-6000 (445) 503-7777 (445) 503-8888 (445) 503-9999