Prefix Information

The prefix 400 is part of area code 304 serving Charleston, West Virginia.

This exchange contains 10,000 possible phone numbers (304-400-0000 through 304-400-9999).

Browse Numbers in This Prefix

304-400-0000-0999 304-400-1000-1999 304-400-2000-2999 304-400-3000-3999 304-400-4000-4999 304-400-5000-5999 304-400-6000-6999 304-400-7000-7999 304-400-8000-8999 304-400-9000-9999

Sample Numbers

(304) 400-0000 (304) 400-1234 (304) 400-2000 (304) 400-3333 (304) 400-4444 (304) 400-5555 (304) 400-6000 (304) 400-7777 (304) 400-8888 (304) 400-9999