Prefix Information

The prefix 274 is part of area code 312 serving Chicago, Illinois.

This exchange contains 10,000 possible phone numbers (312-274-0000 through 312-274-9999).

Browse Numbers in This Prefix

312-274-0000-0999 312-274-1000-1999 312-274-2000-2999 312-274-3000-3999 312-274-4000-4999 312-274-5000-5999 312-274-6000-6999 312-274-7000-7999 312-274-8000-8999 312-274-9000-9999

Sample Numbers

(312) 274-0000 (312) 274-1234 (312) 274-2000 (312) 274-3333 (312) 274-4444 (312) 274-5555 (312) 274-6000 (312) 274-7777 (312) 274-8888 (312) 274-9999