Prefix Information

The prefix 443 is part of area code 312 serving Chicago, Illinois.

This exchange contains 10,000 possible phone numbers (312-443-0000 through 312-443-9999).

Browse Numbers in This Prefix

312-443-0000-0999 312-443-1000-1999 312-443-2000-2999 312-443-3000-3999 312-443-4000-4999 312-443-5000-5999 312-443-6000-6999 312-443-7000-7999 312-443-8000-8999 312-443-9000-9999

Sample Numbers

(312) 443-0000 (312) 443-1234 (312) 443-2000 (312) 443-3333 (312) 443-4444 (312) 443-5555 (312) 443-6000 (312) 443-7777 (312) 443-8888 (312) 443-9999