Prefix Information

The prefix 540 is part of area code 712 serving Sioux City, Iowa.

This exchange contains 10,000 possible phone numbers (712-540-0000 through 712-540-9999).

Browse Numbers in This Prefix

712-540-0000-0999 712-540-1000-1999 712-540-2000-2999 712-540-3000-3999 712-540-4000-4999 712-540-5000-5999 712-540-6000-6999 712-540-7000-7999 712-540-8000-8999 712-540-9000-9999

Sample Numbers

(712) 540-0000 (712) 540-1234 (712) 540-2000 (712) 540-3333 (712) 540-4444 (712) 540-5555 (712) 540-6000 (712) 540-7777 (712) 540-8888 (712) 540-9999