Prefix Information

The prefix 204 is part of area code 331 serving Aurora, Illinois.

This exchange contains 10,000 possible phone numbers (331-204-0000 through 331-204-9999).

Browse Numbers in This Prefix

331-204-0000-0999 331-204-1000-1999 331-204-2000-2999 331-204-3000-3999 331-204-4000-4999 331-204-5000-5999 331-204-6000-6999 331-204-7000-7999 331-204-8000-8999 331-204-9000-9999

Sample Numbers

(331) 204-0000 (331) 204-1234 (331) 204-2000 (331) 204-3333 (331) 204-4444 (331) 204-5555 (331) 204-6000 (331) 204-7777 (331) 204-8888 (331) 204-9999