Prefix Information

The prefix 642 is part of area code 781 serving Lexington, Massachusetts.

This exchange contains 10,000 possible phone numbers (781-642-0000 through 781-642-9999).

Browse Numbers in This Prefix

781-642-0000-0999 781-642-1000-1999 781-642-2000-2999 781-642-3000-3999 781-642-4000-4999 781-642-5000-5999 781-642-6000-6999 781-642-7000-7999 781-642-8000-8999 781-642-9000-9999

Sample Numbers

(781) 642-0000 (781) 642-1234 (781) 642-2000 (781) 642-3333 (781) 642-4444 (781) 642-5555 (781) 642-6000 (781) 642-7777 (781) 642-8888 (781) 642-9999