Prefix Information

The prefix 904 is part of area code 331 serving Aurora, Illinois.

This exchange contains 10,000 possible phone numbers (331-904-0000 through 331-904-9999).

Browse Numbers in This Prefix

331-904-0000-0999 331-904-1000-1999 331-904-2000-2999 331-904-3000-3999 331-904-4000-4999 331-904-5000-5999 331-904-6000-6999 331-904-7000-7999 331-904-8000-8999 331-904-9000-9999

Sample Numbers

(331) 904-0000 (331) 904-1234 (331) 904-2000 (331) 904-3333 (331) 904-4444 (331) 904-5555 (331) 904-6000 (331) 904-7777 (331) 904-8888 (331) 904-9999