Prefix Information

The prefix 543 is part of area code 312 serving Chicago, Illinois.

This exchange contains 10,000 possible phone numbers (312-543-0000 through 312-543-9999).

Browse Numbers in This Prefix

312-543-0000-0999 312-543-1000-1999 312-543-2000-2999 312-543-3000-3999 312-543-4000-4999 312-543-5000-5999 312-543-6000-6999 312-543-7000-7999 312-543-8000-8999 312-543-9000-9999

Sample Numbers

(312) 543-0000 (312) 543-1234 (312) 543-2000 (312) 543-3333 (312) 543-4444 (312) 543-5555 (312) 543-6000 (312) 543-7777 (312) 543-8888 (312) 543-9999