Prefix Information

The prefix 603 is part of area code 517 serving Lansing, Michigan.

This exchange contains 10,000 possible phone numbers (517-603-0000 through 517-603-9999).

Browse Numbers in This Prefix

517-603-0000-0999 517-603-1000-1999 517-603-2000-2999 517-603-3000-3999 517-603-4000-4999 517-603-5000-5999 517-603-6000-6999 517-603-7000-7999 517-603-8000-8999 517-603-9000-9999

Sample Numbers

(517) 603-0000 (517) 603-1234 (517) 603-2000 (517) 603-3333 (517) 603-4444 (517) 603-5555 (517) 603-6000 (517) 603-7777 (517) 603-8888 (517) 603-9999