Prefix Information

The prefix 603 is part of area code 314 serving St. Louis, Missouri.

This exchange contains 10,000 possible phone numbers (314-603-0000 through 314-603-9999).

Browse Numbers in This Prefix

314-603-0000-0999 314-603-1000-1999 314-603-2000-2999 314-603-3000-3999 314-603-4000-4999 314-603-5000-5999 314-603-6000-6999 314-603-7000-7999 314-603-8000-8999 314-603-9000-9999

Sample Numbers

(314) 603-0000 (314) 603-1234 (314) 603-2000 (314) 603-3333 (314) 603-4444 (314) 603-5555 (314) 603-6000 (314) 603-7777 (314) 603-8888 (314) 603-9999