Prefix Information

The prefix 777 is part of area code 312 serving Chicago, Illinois.

This exchange contains 10,000 possible phone numbers (312-777-0000 through 312-777-9999).

Browse Numbers in This Prefix

312-777-0000-0999 312-777-1000-1999 312-777-2000-2999 312-777-3000-3999 312-777-4000-4999 312-777-5000-5999 312-777-6000-6999 312-777-7000-7999 312-777-8000-8999 312-777-9000-9999

Sample Numbers

(312) 777-0000 (312) 777-1234 (312) 777-2000 (312) 777-3333 (312) 777-4444 (312) 777-5555 (312) 777-6000 (312) 777-7777 (312) 777-8888 (312) 777-9999