Prefix Information

The prefix 378 is part of area code 484 serving Allentown, Pennsylvania.

This exchange contains 10,000 possible phone numbers (484-378-0000 through 484-378-9999).

Browse Numbers in This Prefix

484-378-0000-0999 484-378-1000-1999 484-378-2000-2999 484-378-3000-3999 484-378-4000-4999 484-378-5000-5999 484-378-6000-6999 484-378-7000-7999 484-378-8000-8999 484-378-9000-9999

Sample Numbers

(484) 378-0000 (484) 378-1234 (484) 378-2000 (484) 378-3333 (484) 378-4444 (484) 378-5555 (484) 378-6000 (484) 378-7777 (484) 378-8888 (484) 378-9999