Prefix Information

The prefix 503 is part of area code 517 serving Lansing, Michigan.

This exchange contains 10,000 possible phone numbers (517-503-0000 through 517-503-9999).

Browse Numbers in This Prefix

517-503-0000-0999 517-503-1000-1999 517-503-2000-2999 517-503-3000-3999 517-503-4000-4999 517-503-5000-5999 517-503-6000-6999 517-503-7000-7999 517-503-8000-8999 517-503-9000-9999

Sample Numbers

(517) 503-0000 (517) 503-1234 (517) 503-2000 (517) 503-3333 (517) 503-4444 (517) 503-5555 (517) 503-6000 (517) 503-7777 (517) 503-8888 (517) 503-9999