Prefix Information

The prefix 278 is part of area code 503 serving Portland, Oregon.

This exchange contains 10,000 possible phone numbers (503-278-0000 through 503-278-9999).

Browse Numbers in This Prefix

503-278-0000-0999 503-278-1000-1999 503-278-2000-2999 503-278-3000-3999 503-278-4000-4999 503-278-5000-5999 503-278-6000-6999 503-278-7000-7999 503-278-8000-8999 503-278-9000-9999

Sample Numbers

(503) 278-0000 (503) 278-1234 (503) 278-2000 (503) 278-3333 (503) 278-4444 (503) 278-5555 (503) 278-6000 (503) 278-7777 (503) 278-8888 (503) 278-9999