Prefix Information

The prefix 121 is part of area code 484 serving Allentown, Pennsylvania.

This exchange contains 10,000 possible phone numbers (484-121-0000 through 484-121-9999).

Browse Numbers in This Prefix

484-121-0000-0999 484-121-1000-1999 484-121-2000-2999 484-121-3000-3999 484-121-4000-4999 484-121-5000-5999 484-121-6000-6999 484-121-7000-7999 484-121-8000-8999 484-121-9000-9999

Sample Numbers

(484) 121-0000 (484) 121-1234 (484) 121-2000 (484) 121-3333 (484) 121-4444 (484) 121-5555 (484) 121-6000 (484) 121-7777 (484) 121-8888 (484) 121-9999