Prefix Information

The prefix 251 is part of area code 610 serving Allentown, Pennsylvania.

This exchange contains 10,000 possible phone numbers (610-251-0000 through 610-251-9999).

Browse Numbers in This Prefix

610-251-0000-0999 610-251-1000-1999 610-251-2000-2999 610-251-3000-3999 610-251-4000-4999 610-251-5000-5999 610-251-6000-6999 610-251-7000-7999 610-251-8000-8999 610-251-9000-9999

Sample Numbers

(610) 251-0000 (610) 251-1234 (610) 251-2000 (610) 251-3333 (610) 251-4444 (610) 251-5555 (610) 251-6000 (610) 251-7777 (610) 251-8888 (610) 251-9999