Prefix Information

The prefix 340 is part of area code 781 serving Lexington, Massachusetts.

This exchange contains 10,000 possible phone numbers (781-340-0000 through 781-340-9999).

Browse Numbers in This Prefix

781-340-0000-0999 781-340-1000-1999 781-340-2000-2999 781-340-3000-3999 781-340-4000-4999 781-340-5000-5999 781-340-6000-6999 781-340-7000-7999 781-340-8000-8999 781-340-9000-9999

Sample Numbers

(781) 340-0000 (781) 340-1234 (781) 340-2000 (781) 340-3333 (781) 340-4444 (781) 340-5555 (781) 340-6000 (781) 340-7777 (781) 340-8888 (781) 340-9999