diff --git a/src/Microsoft.AspNet.WebUtilities/ReasonPhrases.cs b/src/Microsoft.AspNet.WebUtilities/ReasonPhrases.cs
new file mode 100644
index 0000000000..487437d6a3
--- /dev/null
+++ b/src/Microsoft.AspNet.WebUtilities/ReasonPhrases.cs
@@ -0,0 +1,65 @@
+// Copyright (c) Microsoft Open Technologies, Inc. All rights reserved.
+// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
+
+using System.Collections.Generic;
+
+namespace Microsoft.AspNet.WebUtilities
+{
+    public static class ReasonPhrases
+    {
+        private static IDictionary<int, string> Phrases = new Dictionary<int, string>()
+        {
+            { 200, "OK" },
+            { 201, "Created" },
+            { 202, "Accepted" },
+            { 203, "Non-Authoritative Information" },
+            { 204, "No Content" },
+            { 205, "Reset Content" },
+            { 206, "Partial Content" },
+
+            { 300, "Multiple Choices" },
+            { 301, "Moved Permanently" },
+            { 302, "Found" },
+            { 303, "See Other" },
+            { 304, "Not Modified" },
+            { 305, "Use Proxy" },
+            { 306, "Switch Proxy" },
+            { 307, "Temporary Redirect" },
+
+            { 400, "Bad Request" },
+            { 401, "Unauthorized" },
+            { 402, "Payment Required" },
+            { 403, "Forbidden" },
+            { 404, "Not Found" },
+            { 405, "Method Not Allowed" },
+            { 406, "Not Acceptable" },
+            { 407, "Proxy Authentication Required" },
+            { 408, "Request Timeout" },
+            { 409, "Conflict" },
+            { 410, "Gone" },
+            { 411, "Length Required" },
+            { 412, "Precondition Failed" },
+            { 413, "Request Entity Too Large" },
+            { 414, "Request-URI Too Long" },
+            { 415, "Unsupported Media Type" },
+            { 416, "Requested Range Not Satisfiable" },
+            { 417, "Expectation Failed" },
+            { 418, "I'm a teapot" },
+            { 419, "Authentication Timeout" },
+
+            { 500, "Internal Server Error" },
+            { 501, "Not Implemented" },
+            { 502, "Bad Gateway" },
+            { 503, "Service Unavailable" },
+            { 504, "Gateway Timeout" },
+            { 505, "HTTP Version Not Supported" },
+            { 506, "Variant Also Negotiates" },
+        };
+
+        public static string GetReasonPhrase(int statusCode)
+        {
+            string phrase;
+            return Phrases.TryGetValue(statusCode, out phrase) ? phrase : string.Empty;
+        }
+    }
+}
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diff --git a/src/Microsoft.AspNet.WebUtilities/StatusCodes.cs b/src/Microsoft.AspNet.WebUtilities/StatusCodes.cs
new file mode 100644
index 0000000000..959d9593d9
--- /dev/null
+++ b/src/Microsoft.AspNet.WebUtilities/StatusCodes.cs
@@ -0,0 +1,54 @@
+// Copyright (c) Microsoft Open Technologies, Inc. All rights reserved.
+// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
+
+namespace Microsoft.AspNet.WebUtilities
+{
+    public static class StatusCodes
+    {
+        public const int Status200OK = 200;
+        public const int Status201Created = 201;
+        public const int Status202Accepted = 202;
+        public const int Status203NonAuthoritative = 203;
+        public const int Status204NoContent = 204;
+        public const int Status205ResetContent = 205;
+        public const int Status206PartialContent = 206;
+
+        public const int Status300MultipleChoices = 300;
+        public const int Status301MovedPermanently = 301;
+        public const int Status302Found = 302;
+        public const int Status303SeeOther = 303;
+        public const int Status304NotModified = 304;
+        public const int Status305UseProxy = 305;
+        public const int Status306SwitchProxy = 306;
+        public const int Status307TemporaryRedirect = 307;
+
+        public const int Status400BadRequest = 400;
+        public const int Status401Unauthorized = 401;
+        public const int Status402PaymentRequired = 402;
+        public const int Status403Forbidden = 403;
+        public const int Status404NotFound = 404;
+        public const int Status405MethodNotAllowed = 405;
+        public const int Status406NotAcceptable = 406;
+        public const int Status407ProxyAuthenticationRequired = 407;
+        public const int Status408RequestTimeout = 408;
+        public const int Status409Conflict = 409;
+        public const int Status410Gone = 410;
+        public const int Status411LengthRequired = 411;
+        public const int Status412PreconditionFailed = 412;
+        public const int Status413RequestEntityTooLarge = 413;
+        public const int Status414RequestUriTooLong = 414;
+        public const int Status415UnsupportedMediaType = 415;
+        public const int Status416RequestedRangeNotSatisfiable = 416;
+        public const int Status417ExpectationFailed = 417;
+        public const int Status418ImATeapot = 418;
+        public const int Status419AuthenticationTimeout = 419;
+
+        public const int Status500InternalServerError = 500;
+        public const int Status501NotImplemented = 501;
+        public const int Status502BadGateway = 502;
+        public const int Status503ServiceUnavailable = 503;
+        public const int Status504GatewayTimeout = 504;
+        public const int Status505HttpVersionNotsupported = 505;
+        public const int Status506VariantAlsoNegotiates = 506;
+    }
+}
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