Prefix Information

The prefix 421 is part of area code 414 serving Milwaukee, Wisconsin.

This exchange contains 10,000 possible phone numbers (414-421-0000 through 414-421-9999).

Browse Numbers in This Prefix

414-421-0000-0999 414-421-1000-1999 414-421-2000-2999 414-421-3000-3999 414-421-4000-4999 414-421-5000-5999 414-421-6000-6999 414-421-7000-7999 414-421-8000-8999 414-421-9000-9999

Sample Numbers

(414) 421-0000 (414) 421-1234 (414) 421-2000 (414) 421-3333 (414) 421-4444 (414) 421-5555 (414) 421-6000 (414) 421-7777 (414) 421-8888 (414) 421-9999