Prefix Information

The prefix 121 is part of area code 517 serving Lansing, Michigan.

This exchange contains 10,000 possible phone numbers (517-121-0000 through 517-121-9999).

Browse Numbers in This Prefix

517-121-0000-0999 517-121-1000-1999 517-121-2000-2999 517-121-3000-3999 517-121-4000-4999 517-121-5000-5999 517-121-6000-6999 517-121-7000-7999 517-121-8000-8999 517-121-9000-9999

Sample Numbers

(517) 121-0000 (517) 121-1234 (517) 121-2000 (517) 121-3333 (517) 121-4444 (517) 121-5555 (517) 121-6000 (517) 121-7777 (517) 121-8888 (517) 121-9999