Prefix Information

The prefix 721 is part of area code 256 serving Huntsville, Alabama.

This exchange contains 10,000 possible phone numbers (256-721-0000 through 256-721-9999).

Browse Numbers in This Prefix

256-721-0000-0999 256-721-1000-1999 256-721-2000-2999 256-721-3000-3999 256-721-4000-4999 256-721-5000-5999 256-721-6000-6999 256-721-7000-7999 256-721-8000-8999 256-721-9000-9999

Sample Numbers

(256) 721-0000 (256) 721-1234 (256) 721-2000 (256) 721-3333 (256) 721-4444 (256) 721-5555 (256) 721-6000 (256) 721-7777 (256) 721-8888 (256) 721-9999