Prefix Information

The prefix 665 is part of area code 331 serving Aurora, Illinois.

This exchange contains 10,000 possible phone numbers (331-665-0000 through 331-665-9999).

Browse Numbers in This Prefix

331-665-0000-0999 331-665-1000-1999 331-665-2000-2999 331-665-3000-3999 331-665-4000-4999 331-665-5000-5999 331-665-6000-6999 331-665-7000-7999 331-665-8000-8999 331-665-9000-9999

Sample Numbers

(331) 665-0000 (331) 665-1234 (331) 665-2000 (331) 665-3333 (331) 665-4444 (331) 665-5555 (331) 665-6000 (331) 665-7777 (331) 665-8888 (331) 665-9999