Prefix Information

The prefix 503 is part of area code 872 serving Chicago, Illinois.

This exchange contains 10,000 possible phone numbers (872-503-0000 through 872-503-9999).

Browse Numbers in This Prefix

872-503-0000-0999 872-503-1000-1999 872-503-2000-2999 872-503-3000-3999 872-503-4000-4999 872-503-5000-5999 872-503-6000-6999 872-503-7000-7999 872-503-8000-8999 872-503-9000-9999

Sample Numbers

(872) 503-0000 (872) 503-1234 (872) 503-2000 (872) 503-3333 (872) 503-4444 (872) 503-5555 (872) 503-6000 (872) 503-7777 (872) 503-8888 (872) 503-9999