Prefix Information

The prefix 309 is part of area code 331 serving Aurora, Illinois.

This exchange contains 10,000 possible phone numbers (331-309-0000 through 331-309-9999).

Browse Numbers in This Prefix

331-309-0000-0999 331-309-1000-1999 331-309-2000-2999 331-309-3000-3999 331-309-4000-4999 331-309-5000-5999 331-309-6000-6999 331-309-7000-7999 331-309-8000-8999 331-309-9000-9999

Sample Numbers

(331) 309-0000 (331) 309-1234 (331) 309-2000 (331) 309-3333 (331) 309-4444 (331) 309-5555 (331) 309-6000 (331) 309-7777 (331) 309-8888 (331) 309-9999