Prefix Information

The prefix 400 is part of area code 724 serving New Castle, Pennsylvania.

This exchange contains 10,000 possible phone numbers (724-400-0000 through 724-400-9999).

Browse Numbers in This Prefix

724-400-0000-0999 724-400-1000-1999 724-400-2000-2999 724-400-3000-3999 724-400-4000-4999 724-400-5000-5999 724-400-6000-6999 724-400-7000-7999 724-400-8000-8999 724-400-9000-9999

Sample Numbers

(724) 400-0000 (724) 400-1234 (724) 400-2000 (724) 400-3333 (724) 400-4444 (724) 400-5555 (724) 400-6000 (724) 400-7777 (724) 400-8888 (724) 400-9999