Prefix Information

The prefix 257 is part of area code 484 serving Allentown, Pennsylvania.

This exchange contains 10,000 possible phone numbers (484-257-0000 through 484-257-9999).

Browse Numbers in This Prefix

484-257-0000-0999 484-257-1000-1999 484-257-2000-2999 484-257-3000-3999 484-257-4000-4999 484-257-5000-5999 484-257-6000-6999 484-257-7000-7999 484-257-8000-8999 484-257-9000-9999

Sample Numbers

(484) 257-0000 (484) 257-1234 (484) 257-2000 (484) 257-3333 (484) 257-4444 (484) 257-5555 (484) 257-6000 (484) 257-7777 (484) 257-8888 (484) 257-9999