Prefix Information

The prefix 604 is part of area code 712 serving Sioux City, Iowa.

This exchange contains 10,000 possible phone numbers (712-604-0000 through 712-604-9999).

Browse Numbers in This Prefix

712-604-0000-0999 712-604-1000-1999 712-604-2000-2999 712-604-3000-3999 712-604-4000-4999 712-604-5000-5999 712-604-6000-6999 712-604-7000-7999 712-604-8000-8999 712-604-9000-9999

Sample Numbers

(712) 604-0000 (712) 604-1234 (712) 604-2000 (712) 604-3333 (712) 604-4444 (712) 604-5555 (712) 604-6000 (712) 604-7777 (712) 604-8888 (712) 604-9999