Prefix Information

The prefix 312 is part of area code 712 serving Sioux City, Iowa.

This exchange contains 10,000 possible phone numbers (712-312-0000 through 712-312-9999).

Browse Numbers in This Prefix

712-312-0000-0999 712-312-1000-1999 712-312-2000-2999 712-312-3000-3999 712-312-4000-4999 712-312-5000-5999 712-312-6000-6999 712-312-7000-7999 712-312-8000-8999 712-312-9000-9999

Sample Numbers

(712) 312-0000 (712) 312-1234 (712) 312-2000 (712) 312-3333 (712) 312-4444 (712) 312-5555 (712) 312-6000 (712) 312-7777 (712) 312-8888 (712) 312-9999