Prefix Information

The prefix 990 is part of area code 312 serving Chicago, Illinois.

This exchange contains 10,000 possible phone numbers (312-990-0000 through 312-990-9999).

Browse Numbers in This Prefix

312-990-0000-0999 312-990-1000-1999 312-990-2000-2999 312-990-3000-3999 312-990-4000-4999 312-990-5000-5999 312-990-6000-6999 312-990-7000-7999 312-990-8000-8999 312-990-9000-9999

Sample Numbers

(312) 990-0000 (312) 990-1234 (312) 990-2000 (312) 990-3333 (312) 990-4444 (312) 990-5555 (312) 990-6000 (312) 990-7777 (312) 990-8888 (312) 990-9999