Prefix Information

The prefix 643 is part of area code 712 serving Sioux City, Iowa.

This exchange contains 10,000 possible phone numbers (712-643-0000 through 712-643-9999).

Browse Numbers in This Prefix

712-643-0000-0999 712-643-1000-1999 712-643-2000-2999 712-643-3000-3999 712-643-4000-4999 712-643-5000-5999 712-643-6000-6999 712-643-7000-7999 712-643-8000-8999 712-643-9000-9999

Sample Numbers

(712) 643-0000 (712) 643-1234 (712) 643-2000 (712) 643-3333 (712) 643-4444 (712) 643-5555 (712) 643-6000 (712) 643-7777 (712) 643-8888 (712) 643-9999