Prefix Information

The prefix 255 is part of area code 312 serving Chicago, Illinois.

This exchange contains 10,000 possible phone numbers (312-255-0000 through 312-255-9999).

Browse Numbers in This Prefix

312-255-0000-0999 312-255-1000-1999 312-255-2000-2999 312-255-3000-3999 312-255-4000-4999 312-255-5000-5999 312-255-6000-6999 312-255-7000-7999 312-255-8000-8999 312-255-9000-9999

Sample Numbers

(312) 255-0000 (312) 255-1234 (312) 255-2000 (312) 255-3333 (312) 255-4444 (312) 255-5555 (312) 255-6000 (312) 255-7777 (312) 255-8888 (312) 255-9999