Prefix Information

The prefix 378 is part of area code 520 serving Tucson, Arizona.

This exchange contains 10,000 possible phone numbers (520-378-0000 through 520-378-9999).

Browse Numbers in This Prefix

520-378-0000-0999 520-378-1000-1999 520-378-2000-2999 520-378-3000-3999 520-378-4000-4999 520-378-5000-5999 520-378-6000-6999 520-378-7000-7999 520-378-8000-8999 520-378-9000-9999

Sample Numbers

(520) 378-0000 (520) 378-1234 (520) 378-2000 (520) 378-3333 (520) 378-4444 (520) 378-5555 (520) 378-6000 (520) 378-7777 (520) 378-8888 (520) 378-9999