Prefix Information

The prefix 397 is part of area code 312 serving Chicago, Illinois.

This exchange contains 10,000 possible phone numbers (312-397-0000 through 312-397-9999).

Browse Numbers in This Prefix

312-397-0000-0999 312-397-1000-1999 312-397-2000-2999 312-397-3000-3999 312-397-4000-4999 312-397-5000-5999 312-397-6000-6999 312-397-7000-7999 312-397-8000-8999 312-397-9000-9999

Sample Numbers

(312) 397-0000 (312) 397-1234 (312) 397-2000 (312) 397-3333 (312) 397-4444 (312) 397-5555 (312) 397-6000 (312) 397-7777 (312) 397-8888 (312) 397-9999