Update index.html

Add new 457 area code

Author: spmedia

index.html

@@ -110,7 +110,7 @@ <h1 class="page-title" id="page-title">
               <a href="https://defcongroups.org/dcgfaq.html"
               target="_blank"><strong>DEF CON group</strong></a> for the <a
               href="https://en.wikipedia.org/wiki/Area_code_225" target="_blank"><strong>225</strong>
-              area code</a> and surrounding areas. <strong>337, 318, 225, 504, and 985</strong> area codes are <strong>represented</strong>.
+              area code</a> and surrounding areas. <strong>337, 318, 225, 457, 504, and 985</strong> area codes are <strong>represented</strong>.
             </p>
             <p>
               <strong>DC225</strong> is composed of <strong>students, professionals, researchers, and hobbyists</strong> that <strong>meet</strong> and <strong>discuss</strong>