Prefix Information

The prefix 391 is part of area code 312 serving Chicago, Illinois.

This exchange contains 10,000 possible phone numbers (312-391-0000 through 312-391-9999).

Browse Numbers in This Prefix

312-391-0000-0999 312-391-1000-1999 312-391-2000-2999 312-391-3000-3999 312-391-4000-4999 312-391-5000-5999 312-391-6000-6999 312-391-7000-7999 312-391-8000-8999 312-391-9000-9999

Sample Numbers

(312) 391-0000 (312) 391-1234 (312) 391-2000 (312) 391-3333 (312) 391-4444 (312) 391-5555 (312) 391-6000 (312) 391-7777 (312) 391-8888 (312) 391-9999