Prefix Information

The prefix 729 is part of area code 312 serving Chicago, Illinois.

This exchange contains 10,000 possible phone numbers (312-729-0000 through 312-729-9999).

Browse Numbers in This Prefix

312-729-0000-0999 312-729-1000-1999 312-729-2000-2999 312-729-3000-3999 312-729-4000-4999 312-729-5000-5999 312-729-6000-6999 312-729-7000-7999 312-729-8000-8999 312-729-9000-9999

Sample Numbers

(312) 729-0000 (312) 729-1234 (312) 729-2000 (312) 729-3333 (312) 729-4444 (312) 729-5555 (312) 729-6000 (312) 729-7777 (312) 729-8888 (312) 729-9999