Prefix Information

The prefix 340 is part of area code 231 serving Muskegon, Michigan.

This exchange contains 10,000 possible phone numbers (231-340-0000 through 231-340-9999).

Browse Numbers in This Prefix

231-340-0000-0999 231-340-1000-1999 231-340-2000-2999 231-340-3000-3999 231-340-4000-4999 231-340-5000-5999 231-340-6000-6999 231-340-7000-7999 231-340-8000-8999 231-340-9000-9999

Sample Numbers

(231) 340-0000 (231) 340-1234 (231) 340-2000 (231) 340-3333 (231) 340-4444 (231) 340-5555 (231) 340-6000 (231) 340-7777 (231) 340-8888 (231) 340-9999