Prefix Information

The prefix 640 is part of area code 400 serving Unknown, Unknown.

This exchange contains 10,000 possible phone numbers (400-640-0000 through 400-640-9999).

Browse Numbers in This Prefix

400-640-0000-0999 400-640-1000-1999 400-640-2000-2999 400-640-3000-3999 400-640-4000-4999 400-640-5000-5999 400-640-6000-6999 400-640-7000-7999 400-640-8000-8999 400-640-9000-9999

Sample Numbers

(400) 640-0000 (400) 640-1234 (400) 640-2000 (400) 640-3333 (400) 640-4444 (400) 640-5555 (400) 640-6000 (400) 640-7777 (400) 640-8888 (400) 640-9999