Prefix Information

The prefix 520 is part of area code 312 serving Chicago, Illinois.

This exchange contains 10,000 possible phone numbers (312-520-0000 through 312-520-9999).

Browse Numbers in This Prefix

312-520-0000-0999 312-520-1000-1999 312-520-2000-2999 312-520-3000-3999 312-520-4000-4999 312-520-5000-5999 312-520-6000-6999 312-520-7000-7999 312-520-8000-8999 312-520-9000-9999

Sample Numbers

(312) 520-0000 (312) 520-1234 (312) 520-2000 (312) 520-3333 (312) 520-4444 (312) 520-5555 (312) 520-6000 (312) 520-7777 (312) 520-8888 (312) 520-9999