Prefix Information

The prefix 399 is part of area code 978 serving Lowell, Massachusetts.

This exchange contains 10,000 possible phone numbers (978-399-0000 through 978-399-9999).

Browse Numbers in This Prefix

978-399-0000-0999 978-399-1000-1999 978-399-2000-2999 978-399-3000-3999 978-399-4000-4999 978-399-5000-5999 978-399-6000-6999 978-399-7000-7999 978-399-8000-8999 978-399-9000-9999

Sample Numbers

(978) 399-0000 (978) 399-1234 (978) 399-2000 (978) 399-3333 (978) 399-4444 (978) 399-5555 (978) 399-6000 (978) 399-7777 (978) 399-8888 (978) 399-9999