Prefix Information

The prefix 603 is part of area code 520 serving Tucson, Arizona.

This exchange contains 10,000 possible phone numbers (520-603-0000 through 520-603-9999).

Browse Numbers in This Prefix

520-603-0000-0999 520-603-1000-1999 520-603-2000-2999 520-603-3000-3999 520-603-4000-4999 520-603-5000-5999 520-603-6000-6999 520-603-7000-7999 520-603-8000-8999 520-603-9000-9999

Sample Numbers

(520) 603-0000 (520) 603-1234 (520) 603-2000 (520) 603-3333 (520) 603-4444 (520) 603-5555 (520) 603-6000 (520) 603-7777 (520) 603-8888 (520) 603-9999