Prefix Information

The prefix 803 is part of area code 312 serving Chicago, Illinois.

This exchange contains 10,000 possible phone numbers (312-803-0000 through 312-803-9999).

Browse Numbers in This Prefix

312-803-0000-0999 312-803-1000-1999 312-803-2000-2999 312-803-3000-3999 312-803-4000-4999 312-803-5000-5999 312-803-6000-6999 312-803-7000-7999 312-803-8000-8999 312-803-9000-9999

Sample Numbers

(312) 803-0000 (312) 803-1234 (312) 803-2000 (312) 803-3333 (312) 803-4444 (312) 803-5555 (312) 803-6000 (312) 803-7777 (312) 803-8888 (312) 803-9999