Prefix Information

The prefix 400 is part of area code 878 serving Pittsburgh, Pennsylvania.

This exchange contains 10,000 possible phone numbers (878-400-0000 through 878-400-9999).

Browse Numbers in This Prefix

878-400-0000-0999 878-400-1000-1999 878-400-2000-2999 878-400-3000-3999 878-400-4000-4999 878-400-5000-5999 878-400-6000-6999 878-400-7000-7999 878-400-8000-8999 878-400-9000-9999

Sample Numbers

(878) 400-0000 (878) 400-1234 (878) 400-2000 (878) 400-3333 (878) 400-4444 (878) 400-5555 (878) 400-6000 (878) 400-7777 (878) 400-8888 (878) 400-9999