Prefix Information

The prefix 664 is part of area code 421 serving Unknown, Unknown.

This exchange contains 10,000 possible phone numbers (421-664-0000 through 421-664-9999).

Browse Numbers in This Prefix

421-664-0000-0999 421-664-1000-1999 421-664-2000-2999 421-664-3000-3999 421-664-4000-4999 421-664-5000-5999 421-664-6000-6999 421-664-7000-7999 421-664-8000-8999 421-664-9000-9999

Sample Numbers

(421) 664-0000 (421) 664-1234 (421) 664-2000 (421) 664-3333 (421) 664-4444 (421) 664-5555 (421) 664-6000 (421) 664-7777 (421) 664-8888 (421) 664-9999