Prefix Information

The prefix 240 is part of area code 312 serving Chicago, Illinois.

This exchange contains 10,000 possible phone numbers (312-240-0000 through 312-240-9999).

Browse Numbers in This Prefix

312-240-0000-0999 312-240-1000-1999 312-240-2000-2999 312-240-3000-3999 312-240-4000-4999 312-240-5000-5999 312-240-6000-6999 312-240-7000-7999 312-240-8000-8999 312-240-9000-9999

Sample Numbers

(312) 240-0000 (312) 240-1234 (312) 240-2000 (312) 240-3333 (312) 240-4444 (312) 240-5555 (312) 240-6000 (312) 240-7777 (312) 240-8888 (312) 240-9999