Prefix Information

The prefix 623 is part of area code 712 serving Sioux City, Iowa.

This exchange contains 10,000 possible phone numbers (712-623-0000 through 712-623-9999).

Browse Numbers in This Prefix

712-623-0000-0999 712-623-1000-1999 712-623-2000-2999 712-623-3000-3999 712-623-4000-4999 712-623-5000-5999 712-623-6000-6999 712-623-7000-7999 712-623-8000-8999 712-623-9000-9999

Sample Numbers

(712) 623-0000 (712) 623-1234 (712) 623-2000 (712) 623-3333 (712) 623-4444 (712) 623-5555 (712) 623-6000 (712) 623-7777 (712) 623-8888 (712) 623-9999