Prefix Information

The prefix 434 is part of area code 312 serving Chicago, Illinois.

This exchange contains 10,000 possible phone numbers (312-434-0000 through 312-434-9999).

Browse Numbers in This Prefix

312-434-0000-0999 312-434-1000-1999 312-434-2000-2999 312-434-3000-3999 312-434-4000-4999 312-434-5000-5999 312-434-6000-6999 312-434-7000-7999 312-434-8000-8999 312-434-9000-9999

Sample Numbers

(312) 434-0000 (312) 434-1234 (312) 434-2000 (312) 434-3333 (312) 434-4444 (312) 434-5555 (312) 434-6000 (312) 434-7777 (312) 434-8888 (312) 434-9999