Prefix Information

The prefix 423 is part of area code 857 serving Boston, Massachusetts.

This exchange contains 10,000 possible phone numbers (857-423-0000 through 857-423-9999).

Browse Numbers in This Prefix

857-423-0000-0999 857-423-1000-1999 857-423-2000-2999 857-423-3000-3999 857-423-4000-4999 857-423-5000-5999 857-423-6000-6999 857-423-7000-7999 857-423-8000-8999 857-423-9000-9999

Sample Numbers

(857) 423-0000 (857) 423-1234 (857) 423-2000 (857) 423-3333 (857) 423-4444 (857) 423-5555 (857) 423-6000 (857) 423-7777 (857) 423-8888 (857) 423-9999