Prefix Information

The prefix 285 is part of area code 312 serving Chicago, Illinois.

This exchange contains 10,000 possible phone numbers (312-285-0000 through 312-285-9999).

Browse Numbers in This Prefix

312-285-0000-0999 312-285-1000-1999 312-285-2000-2999 312-285-3000-3999 312-285-4000-4999 312-285-5000-5999 312-285-6000-6999 312-285-7000-7999 312-285-8000-8999 312-285-9000-9999

Sample Numbers

(312) 285-0000 (312) 285-1234 (312) 285-2000 (312) 285-3333 (312) 285-4444 (312) 285-5555 (312) 285-6000 (312) 285-7777 (312) 285-8888 (312) 285-9999