Prefix Information

The prefix 231 is part of area code 414 serving Milwaukee, Wisconsin.

This exchange contains 10,000 possible phone numbers (414-231-0000 through 414-231-9999).

Browse Numbers in This Prefix

414-231-0000-0999 414-231-1000-1999 414-231-2000-2999 414-231-3000-3999 414-231-4000-4999 414-231-5000-5999 414-231-6000-6999 414-231-7000-7999 414-231-8000-8999 414-231-9000-9999

Sample Numbers

(414) 231-0000 (414) 231-1234 (414) 231-2000 (414) 231-3333 (414) 231-4444 (414) 231-5555 (414) 231-6000 (414) 231-7777 (414) 231-8888 (414) 231-9999