Prefix Information

The prefix 688 is part of area code 312 serving Chicago, Illinois.

This exchange contains 10,000 possible phone numbers (312-688-0000 through 312-688-9999).

Browse Numbers in This Prefix

312-688-0000-0999 312-688-1000-1999 312-688-2000-2999 312-688-3000-3999 312-688-4000-4999 312-688-5000-5999 312-688-6000-6999 312-688-7000-7999 312-688-8000-8999 312-688-9000-9999

Sample Numbers

(312) 688-0000 (312) 688-1234 (312) 688-2000 (312) 688-3333 (312) 688-4444 (312) 688-5555 (312) 688-6000 (312) 688-7777 (312) 688-8888 (312) 688-9999