Prefix Information

The prefix 203 is part of area code 520 serving Tucson, Arizona.

This exchange contains 10,000 possible phone numbers (520-203-0000 through 520-203-9999).

Browse Numbers in This Prefix

520-203-0000-0999 520-203-1000-1999 520-203-2000-2999 520-203-3000-3999 520-203-4000-4999 520-203-5000-5999 520-203-6000-6999 520-203-7000-7999 520-203-8000-8999 520-203-9000-9999

Sample Numbers

(520) 203-0000 (520) 203-1234 (520) 203-2000 (520) 203-3333 (520) 203-4444 (520) 203-5555 (520) 203-6000 (520) 203-7777 (520) 203-8888 (520) 203-9999