Prefix Information

The prefix 664 is part of area code 378 serving Unknown, Unknown.

This exchange contains 10,000 possible phone numbers (378-664-0000 through 378-664-9999).

Browse Numbers in This Prefix

378-664-0000-0999 378-664-1000-1999 378-664-2000-2999 378-664-3000-3999 378-664-4000-4999 378-664-5000-5999 378-664-6000-6999 378-664-7000-7999 378-664-8000-8999 378-664-9000-9999

Sample Numbers

(378) 664-0000 (378) 664-1234 (378) 664-2000 (378) 664-3333 (378) 664-4444 (378) 664-5555 (378) 664-6000 (378) 664-7777 (378) 664-8888 (378) 664-9999