Prefix Information

The prefix 398 is part of area code 312 serving Chicago, Illinois.

This exchange contains 10,000 possible phone numbers (312-398-0000 through 312-398-9999).

Browse Numbers in This Prefix

312-398-0000-0999 312-398-1000-1999 312-398-2000-2999 312-398-3000-3999 312-398-4000-4999 312-398-5000-5999 312-398-6000-6999 312-398-7000-7999 312-398-8000-8999 312-398-9000-9999

Sample Numbers

(312) 398-0000 (312) 398-1234 (312) 398-2000 (312) 398-3333 (312) 398-4444 (312) 398-5555 (312) 398-6000 (312) 398-7777 (312) 398-8888 (312) 398-9999