Prefix Information

The prefix 857 is part of area code 712 serving Sioux City, Iowa.

This exchange contains 10,000 possible phone numbers (712-857-0000 through 712-857-9999).

Browse Numbers in This Prefix

712-857-0000-0999 712-857-1000-1999 712-857-2000-2999 712-857-3000-3999 712-857-4000-4999 712-857-5000-5999 712-857-6000-6999 712-857-7000-7999 712-857-8000-8999 712-857-9000-9999

Sample Numbers

(712) 857-0000 (712) 857-1234 (712) 857-2000 (712) 857-3333 (712) 857-4444 (712) 857-5555 (712) 857-6000 (712) 857-7777 (712) 857-8888 (712) 857-9999