Prefix Information

The prefix 438 is part of area code 312 serving Chicago, Illinois.

This exchange contains 10,000 possible phone numbers (312-438-0000 through 312-438-9999).

Browse Numbers in This Prefix

312-438-0000-0999 312-438-1000-1999 312-438-2000-2999 312-438-3000-3999 312-438-4000-4999 312-438-5000-5999 312-438-6000-6999 312-438-7000-7999 312-438-8000-8999 312-438-9000-9999

Sample Numbers

(312) 438-0000 (312) 438-1234 (312) 438-2000 (312) 438-3333 (312) 438-4444 (312) 438-5555 (312) 438-6000 (312) 438-7777 (312) 438-8888 (312) 438-9999