Prefix Information

The prefix 671 is part of area code 312 serving Chicago, Illinois.

This exchange contains 10,000 possible phone numbers (312-671-0000 through 312-671-9999).

Browse Numbers in This Prefix

312-671-0000-0999 312-671-1000-1999 312-671-2000-2999 312-671-3000-3999 312-671-4000-4999 312-671-5000-5999 312-671-6000-6999 312-671-7000-7999 312-671-8000-8999 312-671-9000-9999

Sample Numbers

(312) 671-0000 (312) 671-1234 (312) 671-2000 (312) 671-3333 (312) 671-4444 (312) 671-5555 (312) 671-6000 (312) 671-7777 (312) 671-8888 (312) 671-9999