Prefix Information

The prefix 623 is part of area code 331 serving Aurora, Illinois.

This exchange contains 10,000 possible phone numbers (331-623-0000 through 331-623-9999).

Browse Numbers in This Prefix

331-623-0000-0999 331-623-1000-1999 331-623-2000-2999 331-623-3000-3999 331-623-4000-4999 331-623-5000-5999 331-623-6000-6999 331-623-7000-7999 331-623-8000-8999 331-623-9000-9999

Sample Numbers

(331) 623-0000 (331) 623-1234 (331) 623-2000 (331) 623-3333 (331) 623-4444 (331) 623-5555 (331) 623-6000 (331) 623-7777 (331) 623-8888 (331) 623-9999