Prefix Information

The prefix 640 is part of area code 256 serving Huntsville, Alabama.

This exchange contains 10,000 possible phone numbers (256-640-0000 through 256-640-9999).

Browse Numbers in This Prefix

256-640-0000-0999 256-640-1000-1999 256-640-2000-2999 256-640-3000-3999 256-640-4000-4999 256-640-5000-5999 256-640-6000-6999 256-640-7000-7999 256-640-8000-8999 256-640-9000-9999

Sample Numbers

(256) 640-0000 (256) 640-1234 (256) 640-2000 (256) 640-3333 (256) 640-4444 (256) 640-5555 (256) 640-6000 (256) 640-7777 (256) 640-8888 (256) 640-9999