Prefix Information

The prefix 664 is part of area code 878 serving Pittsburgh, Pennsylvania.

This exchange contains 10,000 possible phone numbers (878-664-0000 through 878-664-9999).

Browse Numbers in This Prefix

878-664-0000-0999 878-664-1000-1999 878-664-2000-2999 878-664-3000-3999 878-664-4000-4999 878-664-5000-5999 878-664-6000-6999 878-664-7000-7999 878-664-8000-8999 878-664-9000-9999

Sample Numbers

(878) 664-0000 (878) 664-1234 (878) 664-2000 (878) 664-3333 (878) 664-4444 (878) 664-5555 (878) 664-6000 (878) 664-7777 (878) 664-8888 (878) 664-9999