Prefix Information

The prefix 378 is part of area code 610 serving Allentown, Pennsylvania.

This exchange contains 10,000 possible phone numbers (610-378-0000 through 610-378-9999).

Browse Numbers in This Prefix

610-378-0000-0999 610-378-1000-1999 610-378-2000-2999 610-378-3000-3999 610-378-4000-4999 610-378-5000-5999 610-378-6000-6999 610-378-7000-7999 610-378-8000-8999 610-378-9000-9999

Sample Numbers

(610) 378-0000 (610) 378-1234 (610) 378-2000 (610) 378-3333 (610) 378-4444 (610) 378-5555 (610) 378-6000 (610) 378-7777 (610) 378-8888 (610) 378-9999