Prefix Information

The prefix 640 is part of area code 397 serving Unknown, Unknown.

This exchange contains 10,000 possible phone numbers (397-640-0000 through 397-640-9999).

Browse Numbers in This Prefix

397-640-0000-0999 397-640-1000-1999 397-640-2000-2999 397-640-3000-3999 397-640-4000-4999 397-640-5000-5999 397-640-6000-6999 397-640-7000-7999 397-640-8000-8999 397-640-9000-9999

Sample Numbers

(397) 640-0000 (397) 640-1234 (397) 640-2000 (397) 640-3333 (397) 640-4444 (397) 640-5555 (397) 640-6000 (397) 640-7777 (397) 640-8888 (397) 640-9999