Prefix Information

The prefix 643 is part of area code 978 serving Lowell, Massachusetts.

This exchange contains 10,000 possible phone numbers (978-643-0000 through 978-643-9999).

Browse Numbers in This Prefix

978-643-0000-0999 978-643-1000-1999 978-643-2000-2999 978-643-3000-3999 978-643-4000-4999 978-643-5000-5999 978-643-6000-6999 978-643-7000-7999 978-643-8000-8999 978-643-9000-9999

Sample Numbers

(978) 643-0000 (978) 643-1234 (978) 643-2000 (978) 643-3333 (978) 643-4444 (978) 643-5555 (978) 643-6000 (978) 643-7777 (978) 643-8888 (978) 643-9999