Prefix Information

The prefix 431 is part of area code 610 serving Allentown, Pennsylvania.

This exchange contains 10,000 possible phone numbers (610-431-0000 through 610-431-9999).

Browse Numbers in This Prefix

610-431-0000-0999 610-431-1000-1999 610-431-2000-2999 610-431-3000-3999 610-431-4000-4999 610-431-5000-5999 610-431-6000-6999 610-431-7000-7999 610-431-8000-8999 610-431-9000-9999

Sample Numbers

(610) 431-0000 (610) 431-1234 (610) 431-2000 (610) 431-3333 (610) 431-4444 (610) 431-5555 (610) 431-6000 (610) 431-7777 (610) 431-8888 (610) 431-9999