Prefix Information

The prefix 421 is part of area code 517 serving Lansing, Michigan.

This exchange contains 10,000 possible phone numbers (517-421-0000 through 517-421-9999).

Browse Numbers in This Prefix

517-421-0000-0999 517-421-1000-1999 517-421-2000-2999 517-421-3000-3999 517-421-4000-4999 517-421-5000-5999 517-421-6000-6999 517-421-7000-7999 517-421-8000-8999 517-421-9000-9999

Sample Numbers

(517) 421-0000 (517) 421-1234 (517) 421-2000 (517) 421-3333 (517) 421-4444 (517) 421-5555 (517) 421-6000 (517) 421-7777 (517) 421-8888 (517) 421-9999