Prefix Information

The prefix 640 is part of area code 608 serving Madison, Wisconsin.

This exchange contains 10,000 possible phone numbers (608-640-0000 through 608-640-9999).

Browse Numbers in This Prefix

608-640-0000-0999 608-640-1000-1999 608-640-2000-2999 608-640-3000-3999 608-640-4000-4999 608-640-5000-5999 608-640-6000-6999 608-640-7000-7999 608-640-8000-8999 608-640-9000-9999

Sample Numbers

(608) 640-0000 (608) 640-1234 (608) 640-2000 (608) 640-3333 (608) 640-4444 (608) 640-5555 (608) 640-6000 (608) 640-7777 (608) 640-8888 (608) 640-9999