Prefix Information

The prefix 421 is part of area code 816 serving Kansas City, Missouri.

This exchange contains 10,000 possible phone numbers (816-421-0000 through 816-421-9999).

Browse Numbers in This Prefix

816-421-0000-0999 816-421-1000-1999 816-421-2000-2999 816-421-3000-3999 816-421-4000-4999 816-421-5000-5999 816-421-6000-6999 816-421-7000-7999 816-421-8000-8999 816-421-9000-9999

Sample Numbers

(816) 421-0000 (816) 421-1234 (816) 421-2000 (816) 421-3333 (816) 421-4444 (816) 421-5555 (816) 421-6000 (816) 421-7777 (816) 421-8888 (816) 421-9999