Prefix Information

The prefix 399 is part of area code 313 serving Detroit, Michigan.

This exchange contains 10,000 possible phone numbers (313-399-0000 through 313-399-9999).

Browse Numbers in This Prefix

313-399-0000-0999 313-399-1000-1999 313-399-2000-2999 313-399-3000-3999 313-399-4000-4999 313-399-5000-5999 313-399-6000-6999 313-399-7000-7999 313-399-8000-8999 313-399-9000-9999

Sample Numbers

(313) 399-0000 (313) 399-1234 (313) 399-2000 (313) 399-3333 (313) 399-4444 (313) 399-5555 (313) 399-6000 (313) 399-7777 (313) 399-8888 (313) 399-9999