Prefix Information

The prefix 603 is part of area code 310 serving Santa Monica, California.

This exchange contains 10,000 possible phone numbers (310-603-0000 through 310-603-9999).

Browse Numbers in This Prefix

310-603-0000-0999 310-603-1000-1999 310-603-2000-2999 310-603-3000-3999 310-603-4000-4999 310-603-5000-5999 310-603-6000-6999 310-603-7000-7999 310-603-8000-8999 310-603-9000-9999

Sample Numbers

(310) 603-0000 (310) 603-1234 (310) 603-2000 (310) 603-3333 (310) 603-4444 (310) 603-5555 (310) 603-6000 (310) 603-7777 (310) 603-8888 (310) 603-9999