Prefix Information

The prefix 166 is part of area code 331 serving Aurora, Illinois.

This exchange contains 10,000 possible phone numbers (331-166-0000 through 331-166-9999).

Browse Numbers in This Prefix

331-166-0000-0999 331-166-1000-1999 331-166-2000-2999 331-166-3000-3999 331-166-4000-4999 331-166-5000-5999 331-166-6000-6999 331-166-7000-7999 331-166-8000-8999 331-166-9000-9999

Sample Numbers

(331) 166-0000 (331) 166-1234 (331) 166-2000 (331) 166-3333 (331) 166-4444 (331) 166-5555 (331) 166-6000 (331) 166-7777 (331) 166-8888 (331) 166-9999