Prefix Information

The prefix 423 is part of area code 231 serving Muskegon, Michigan.

This exchange contains 10,000 possible phone numbers (231-423-0000 through 231-423-9999).

Browse Numbers in This Prefix

231-423-0000-0999 231-423-1000-1999 231-423-2000-2999 231-423-3000-3999 231-423-4000-4999 231-423-5000-5999 231-423-6000-6999 231-423-7000-7999 231-423-8000-8999 231-423-9000-9999

Sample Numbers

(231) 423-0000 (231) 423-1234 (231) 423-2000 (231) 423-3333 (231) 423-4444 (231) 423-5555 (231) 423-6000 (231) 423-7777 (231) 423-8888 (231) 423-9999