Prefix Information

The prefix 640 is part of area code 319 serving Cedar Rapids, Iowa.

This exchange contains 10,000 possible phone numbers (319-640-0000 through 319-640-9999).

Browse Numbers in This Prefix

319-640-0000-0999 319-640-1000-1999 319-640-2000-2999 319-640-3000-3999 319-640-4000-4999 319-640-5000-5999 319-640-6000-6999 319-640-7000-7999 319-640-8000-8999 319-640-9000-9999

Sample Numbers

(319) 640-0000 (319) 640-1234 (319) 640-2000 (319) 640-3333 (319) 640-4444 (319) 640-5555 (319) 640-6000 (319) 640-7777 (319) 640-8888 (319) 640-9999