Prefix Information

The prefix 406 is part of area code 312 serving Chicago, Illinois.

This exchange contains 10,000 possible phone numbers (312-406-0000 through 312-406-9999).

Browse Numbers in This Prefix

312-406-0000-0999 312-406-1000-1999 312-406-2000-2999 312-406-3000-3999 312-406-4000-4999 312-406-5000-5999 312-406-6000-6999 312-406-7000-7999 312-406-8000-8999 312-406-9000-9999

Sample Numbers

(312) 406-0000 (312) 406-1234 (312) 406-2000 (312) 406-3333 (312) 406-4444 (312) 406-5555 (312) 406-6000 (312) 406-7777 (312) 406-8888 (312) 406-9999