Prefix Information

The prefix 640 is part of area code 937 serving Dayton, Ohio.

This exchange contains 10,000 possible phone numbers (937-640-0000 through 937-640-9999).

Browse Numbers in This Prefix

937-640-0000-0999 937-640-1000-1999 937-640-2000-2999 937-640-3000-3999 937-640-4000-4999 937-640-5000-5999 937-640-6000-6999 937-640-7000-7999 937-640-8000-8999 937-640-9000-9999

Sample Numbers

(937) 640-0000 (937) 640-1234 (937) 640-2000 (937) 640-3333 (937) 640-4444 (937) 640-5555 (937) 640-6000 (937) 640-7777 (937) 640-8888 (937) 640-9999