Prefix Information

The prefix 643 is part of area code 351 serving Lowell, Massachusetts.

This exchange contains 10,000 possible phone numbers (351-643-0000 through 351-643-9999).

Browse Numbers in This Prefix

351-643-0000-0999 351-643-1000-1999 351-643-2000-2999 351-643-3000-3999 351-643-4000-4999 351-643-5000-5999 351-643-6000-6999 351-643-7000-7999 351-643-8000-8999 351-643-9000-9999

Sample Numbers

(351) 643-0000 (351) 643-1234 (351) 643-2000 (351) 643-3333 (351) 643-4444 (351) 643-5555 (351) 643-6000 (351) 643-7777 (351) 643-8888 (351) 643-9999