Prefix Information

The prefix 378 is part of area code 712 serving Sioux City, Iowa.

This exchange contains 10,000 possible phone numbers (712-378-0000 through 712-378-9999).

Browse Numbers in This Prefix

712-378-0000-0999 712-378-1000-1999 712-378-2000-2999 712-378-3000-3999 712-378-4000-4999 712-378-5000-5999 712-378-6000-6999 712-378-7000-7999 712-378-8000-8999 712-378-9000-9999

Sample Numbers

(712) 378-0000 (712) 378-1234 (712) 378-2000 (712) 378-3333 (712) 378-4444 (712) 378-5555 (712) 378-6000 (712) 378-7777 (712) 378-8888 (712) 378-9999