Prefix Information

The prefix 664 is part of area code 331 serving Aurora, Illinois.

This exchange contains 10,000 possible phone numbers (331-664-0000 through 331-664-9999).

Browse Numbers in This Prefix

331-664-0000-0999 331-664-1000-1999 331-664-2000-2999 331-664-3000-3999 331-664-4000-4999 331-664-5000-5999 331-664-6000-6999 331-664-7000-7999 331-664-8000-8999 331-664-9000-9999

Sample Numbers

(331) 664-0000 (331) 664-1234 (331) 664-2000 (331) 664-3333 (331) 664-4444 (331) 664-5555 (331) 664-6000 (331) 664-7777 (331) 664-8888 (331) 664-9999