Prefix Information

The prefix 104 is part of area code 312 serving Chicago, Illinois.

This exchange contains 10,000 possible phone numbers (312-104-0000 through 312-104-9999).

Browse Numbers in This Prefix

312-104-0000-0999 312-104-1000-1999 312-104-2000-2999 312-104-3000-3999 312-104-4000-4999 312-104-5000-5999 312-104-6000-6999 312-104-7000-7999 312-104-8000-8999 312-104-9000-9999

Sample Numbers

(312) 104-0000 (312) 104-1234 (312) 104-2000 (312) 104-3333 (312) 104-4444 (312) 104-5555 (312) 104-6000 (312) 104-7777 (312) 104-8888 (312) 104-9999