Prefix Information

The prefix 308 is part of area code 312 serving Chicago, Illinois.

This exchange contains 10,000 possible phone numbers (312-308-0000 through 312-308-9999).

Browse Numbers in This Prefix

312-308-0000-0999 312-308-1000-1999 312-308-2000-2999 312-308-3000-3999 312-308-4000-4999 312-308-5000-5999 312-308-6000-6999 312-308-7000-7999 312-308-8000-8999 312-308-9000-9999

Sample Numbers

(312) 308-0000 (312) 308-1234 (312) 308-2000 (312) 308-3333 (312) 308-4444 (312) 308-5555 (312) 308-6000 (312) 308-7777 (312) 308-8888 (312) 308-9999