Prefix Information

The prefix 603 is part of area code 445 serving Philadelphia, Pennsylvania.

This exchange contains 10,000 possible phone numbers (445-603-0000 through 445-603-9999).

Browse Numbers in This Prefix

445-603-0000-0999 445-603-1000-1999 445-603-2000-2999 445-603-3000-3999 445-603-4000-4999 445-603-5000-5999 445-603-6000-6999 445-603-7000-7999 445-603-8000-8999 445-603-9000-9999

Sample Numbers

(445) 603-0000 (445) 603-1234 (445) 603-2000 (445) 603-3333 (445) 603-4444 (445) 603-5555 (445) 603-6000 (445) 603-7777 (445) 603-8888 (445) 603-9999