Prefix Information

The prefix 813 is part of area code 331 serving Aurora, Illinois.

This exchange contains 10,000 possible phone numbers (331-813-0000 through 331-813-9999).

Browse Numbers in This Prefix

331-813-0000-0999 331-813-1000-1999 331-813-2000-2999 331-813-3000-3999 331-813-4000-4999 331-813-5000-5999 331-813-6000-6999 331-813-7000-7999 331-813-8000-8999 331-813-9000-9999

Sample Numbers

(331) 813-0000 (331) 813-1234 (331) 813-2000 (331) 813-3333 (331) 813-4444 (331) 813-5555 (331) 813-6000 (331) 813-7777 (331) 813-8888 (331) 813-9999