Prefix Information

The prefix 399 is part of area code 909 serving County, California.

This exchange contains 10,000 possible phone numbers (909-399-0000 through 909-399-9999).

Browse Numbers in This Prefix

909-399-0000-0999 909-399-1000-1999 909-399-2000-2999 909-399-3000-3999 909-399-4000-4999 909-399-5000-5999 909-399-6000-6999 909-399-7000-7999 909-399-8000-8999 909-399-9000-9999

Sample Numbers

(909) 399-0000 (909) 399-1234 (909) 399-2000 (909) 399-3333 (909) 399-4444 (909) 399-5555 (909) 399-6000 (909) 399-7777 (909) 399-8888 (909) 399-9999