Prefix Information

The prefix 378 is part of area code 773 serving Chicago, Illinois.

This exchange contains 10,000 possible phone numbers (773-378-0000 through 773-378-9999).

Browse Numbers in This Prefix

773-378-0000-0999 773-378-1000-1999 773-378-2000-2999 773-378-3000-3999 773-378-4000-4999 773-378-5000-5999 773-378-6000-6999 773-378-7000-7999 773-378-8000-8999 773-378-9000-9999

Sample Numbers

(773) 378-0000 (773) 378-1234 (773) 378-2000 (773) 378-3333 (773) 378-4444 (773) 378-5555 (773) 378-6000 (773) 378-7777 (773) 378-8888 (773) 378-9999