Prefix Information

The prefix 203 is part of area code 610 serving Allentown, Pennsylvania.

This exchange contains 10,000 possible phone numbers (610-203-0000 through 610-203-9999).

Browse Numbers in This Prefix

610-203-0000-0999 610-203-1000-1999 610-203-2000-2999 610-203-3000-3999 610-203-4000-4999 610-203-5000-5999 610-203-6000-6999 610-203-7000-7999 610-203-8000-8999 610-203-9000-9999

Sample Numbers

(610) 203-0000 (610) 203-1234 (610) 203-2000 (610) 203-3333 (610) 203-4444 (610) 203-5555 (610) 203-6000 (610) 203-7777 (610) 203-8888 (610) 203-9999