Prefix Information

The prefix 940 is part of area code 312 serving Chicago, Illinois.

This exchange contains 10,000 possible phone numbers (312-940-0000 through 312-940-9999).

Browse Numbers in This Prefix

312-940-0000-0999 312-940-1000-1999 312-940-2000-2999 312-940-3000-3999 312-940-4000-4999 312-940-5000-5999 312-940-6000-6999 312-940-7000-7999 312-940-8000-8999 312-940-9000-9999

Sample Numbers

(312) 940-0000 (312) 940-1234 (312) 940-2000 (312) 940-3333 (312) 940-4444 (312) 940-5555 (312) 940-6000 (312) 940-7777 (312) 940-8888 (312) 940-9999