Prefix Information

The prefix 388 is part of area code 312 serving Chicago, Illinois.

This exchange contains 10,000 possible phone numbers (312-388-0000 through 312-388-9999).

Browse Numbers in This Prefix

312-388-0000-0999 312-388-1000-1999 312-388-2000-2999 312-388-3000-3999 312-388-4000-4999 312-388-5000-5999 312-388-6000-6999 312-388-7000-7999 312-388-8000-8999 312-388-9000-9999

Sample Numbers

(312) 388-0000 (312) 388-1234 (312) 388-2000 (312) 388-3333 (312) 388-4444 (312) 388-5555 (312) 388-6000 (312) 388-7777 (312) 388-8888 (312) 388-9999