diff --git a/Bandwidth.Standard.sln b/Bandwidth.Standard.sln
index 213cb40..3882d7f 100644
--- a/Bandwidth.Standard.sln
+++ b/Bandwidth.Standard.sln
@@ -2,7 +2,7 @@ Microsoft Visual Studio Solution File, Format Version 12.00
 # Visual Studio 14
 VisualStudioVersion = 14.0.25420.1
 MinimumVisualStudioVersion = 10.0.40219.1
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Bandwidth.Standard", "src\Bandwidth.Standard\Bandwidth.Standard.csproj", "{FDCACCB2-FFE6-4E8A-9F20-CA5F0A4D92B5}"
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Bandwidth.Standard", "src\Bandwidth.Standard\Bandwidth.Standard.csproj", "{8CF842FF-C39E-4018-8F0A-9DAAC9EAFFC7}"
 EndProject
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Bandwidth.Standard.Test", "src\Bandwidth.Standard.Test\Bandwidth.Standard.Test.csproj", "{19F1DEBC-DE5E-4517-8062-F000CD499087}"
 EndProject
@@ -12,10 +12,10 @@ Global
 		Release|Any CPU = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(ProjectConfigurationPlatforms) = postSolution
-		{FDCACCB2-FFE6-4E8A-9F20-CA5F0A4D92B5}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
-		{FDCACCB2-FFE6-4E8A-9F20-CA5F0A4D92B5}.Debug|Any CPU.Build.0 = Debug|Any CPU
-		{FDCACCB2-FFE6-4E8A-9F20-CA5F0A4D92B5}.Release|Any CPU.ActiveCfg = Release|Any CPU
-		{FDCACCB2-FFE6-4E8A-9F20-CA5F0A4D92B5}.Release|Any CPU.Build.0 = Release|Any CPU
+		{8CF842FF-C39E-4018-8F0A-9DAAC9EAFFC7}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{8CF842FF-C39E-4018-8F0A-9DAAC9EAFFC7}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{8CF842FF-C39E-4018-8F0A-9DAAC9EAFFC7}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{8CF842FF-C39E-4018-8F0A-9DAAC9EAFFC7}.Release|Any CPU.Build.0 = Release|Any CPU
 		{19F1DEBC-DE5E-4517-8062-F000CD499087}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
 		{19F1DEBC-DE5E-4517-8062-F000CD499087}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{19F1DEBC-DE5E-4517-8062-F000CD499087}.Release|Any CPU.ActiveCfg = Release|Any CPU
diff --git a/api/openapi.yaml b/api/openapi.yaml
index d004f54..0a19c75 100644
--- a/api/openapi.yaml
+++ b/api/openapi.yaml
@@ -4599,6 +4599,7 @@ paths:
       url: https://mfa.bandwidth.com/api/v1
   /accounts/{accountId}/tnlookup:
     post:
+      deprecated: true
       description: Create a Phone Number Lookup Request.
       operationId: createLookup
       parameters:
@@ -4701,6 +4702,7 @@ paths:
       url: https://numbers.bandwidth.com/api/v1
   /accounts/{accountId}/tnlookup/{requestId}:
     get:
+      deprecated: true
       description: Get an existing Phone Number Lookup Request.
       operationId: getLookupStatus
       parameters:
diff --git a/bandwidth.yml b/bandwidth.yml
index 3cc990a..bf2c9ab 100644
--- a/bandwidth.yml
+++ b/bandwidth.yml
@@ -1330,6 +1330,7 @@ paths:
     servers: *ref_2
   /accounts/{accountId}/tnlookup:
     post:
+      deprecated: true
       summary: Create Lookup
       description: Create a Phone Number Lookup Request.
       operationId: createLookup
@@ -1359,6 +1360,7 @@ paths:
         description: Production
   /accounts/{accountId}/tnlookup/{requestId}:
     get:
+      deprecated: true
       summary: Get Lookup Request Status
       description: Get an existing Phone Number Lookup Request.
       operationId: getLookupStatus
diff --git a/src/Bandwidth.Standard/Api/PhoneNumberLookupApi.cs b/src/Bandwidth.Standard/Api/PhoneNumberLookupApi.cs
index 768237e..f16f0a7 100644
--- a/src/Bandwidth.Standard/Api/PhoneNumberLookupApi.cs
+++ b/src/Bandwidth.Standard/Api/PhoneNumberLookupApi.cs
@@ -38,6 +38,7 @@ public interface IPhoneNumberLookupApiSync : IApiAccessor
         /// <param name="lookupRequest">Phone number lookup request.</param>
         /// <param name="operationIndex">Index associated with the operation.</param>
         /// <returns>CreateLookupResponse</returns>
+        [Obsolete]
         CreateLookupResponse CreateLookup(string accountId, LookupRequest lookupRequest, int operationIndex = 0);
 
         /// <summary>
@@ -51,6 +52,7 @@ public interface IPhoneNumberLookupApiSync : IApiAccessor
         /// <param name="lookupRequest">Phone number lookup request.</param>
         /// <param name="operationIndex">Index associated with the operation.</param>
         /// <returns>ApiResponse of CreateLookupResponse</returns>
+        [Obsolete]
         ApiResponse<CreateLookupResponse> CreateLookupWithHttpInfo(string accountId, LookupRequest lookupRequest, int operationIndex = 0);
         /// <summary>
         /// Get Lookup Request Status
@@ -63,6 +65,7 @@ public interface IPhoneNumberLookupApiSync : IApiAccessor
         /// <param name="requestId">The phone number lookup request ID from Bandwidth.</param>
         /// <param name="operationIndex">Index associated with the operation.</param>
         /// <returns>LookupStatus</returns>
+        [Obsolete]
         LookupStatus GetLookupStatus(string accountId, string requestId, int operationIndex = 0);
 
         /// <summary>
@@ -76,6 +79,7 @@ public interface IPhoneNumberLookupApiSync : IApiAccessor
         /// <param name="requestId">The phone number lookup request ID from Bandwidth.</param>
         /// <param name="operationIndex">Index associated with the operation.</param>
         /// <returns>ApiResponse of LookupStatus</returns>
+        [Obsolete]
         ApiResponse<LookupStatus> GetLookupStatusWithHttpInfo(string accountId, string requestId, int operationIndex = 0);
         #endregion Synchronous Operations
     }
@@ -98,6 +102,7 @@ public interface IPhoneNumberLookupApiAsync : IApiAccessor
         /// <param name="operationIndex">Index associated with the operation.</param>
         /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
         /// <returns>Task of CreateLookupResponse</returns>
+        [Obsolete]
         System.Threading.Tasks.Task<CreateLookupResponse> CreateLookupAsync(string accountId, LookupRequest lookupRequest, int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken));
 
         /// <summary>
@@ -112,6 +117,7 @@ public interface IPhoneNumberLookupApiAsync : IApiAccessor
         /// <param name="operationIndex">Index associated with the operation.</param>
         /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
         /// <returns>Task of ApiResponse (CreateLookupResponse)</returns>
+        [Obsolete]
         System.Threading.Tasks.Task<ApiResponse<CreateLookupResponse>> CreateLookupWithHttpInfoAsync(string accountId, LookupRequest lookupRequest, int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken));
         /// <summary>
         /// Get Lookup Request Status
@@ -125,6 +131,7 @@ public interface IPhoneNumberLookupApiAsync : IApiAccessor
         /// <param name="operationIndex">Index associated with the operation.</param>
         /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
         /// <returns>Task of LookupStatus</returns>
+        [Obsolete]
         System.Threading.Tasks.Task<LookupStatus> GetLookupStatusAsync(string accountId, string requestId, int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken));
 
         /// <summary>
@@ -139,6 +146,7 @@ public interface IPhoneNumberLookupApiAsync : IApiAccessor
         /// <param name="operationIndex">Index associated with the operation.</param>
         /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
         /// <returns>Task of ApiResponse (LookupStatus)</returns>
+        [Obsolete]
         System.Threading.Tasks.Task<ApiResponse<LookupStatus>> GetLookupStatusWithHttpInfoAsync(string accountId, string requestId, int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken));
         #endregion Asynchronous Operations
     }
@@ -268,6 +276,7 @@ public Bandwidth.Standard.Client.ExceptionFactory ExceptionFactory
         /// <param name="lookupRequest">Phone number lookup request.</param>
         /// <param name="operationIndex">Index associated with the operation.</param>
         /// <returns>CreateLookupResponse</returns>
+        [Obsolete]
         public CreateLookupResponse CreateLookup(string accountId, LookupRequest lookupRequest, int operationIndex = 0)
         {
             Bandwidth.Standard.Client.ApiResponse<CreateLookupResponse> localVarResponse = CreateLookupWithHttpInfo(accountId, lookupRequest);
@@ -282,6 +291,7 @@ public CreateLookupResponse CreateLookup(string accountId, LookupRequest lookupR
         /// <param name="lookupRequest">Phone number lookup request.</param>
         /// <param name="operationIndex">Index associated with the operation.</param>
         /// <returns>ApiResponse of CreateLookupResponse</returns>
+        [Obsolete]
         public Bandwidth.Standard.Client.ApiResponse<CreateLookupResponse> CreateLookupWithHttpInfo(string accountId, LookupRequest lookupRequest, int operationIndex = 0)
         {
             // verify the required parameter 'accountId' is set
@@ -355,6 +365,7 @@ public Bandwidth.Standard.Client.ApiResponse<CreateLookupResponse> CreateLookupW
         /// <param name="operationIndex">Index associated with the operation.</param>
         /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
         /// <returns>Task of CreateLookupResponse</returns>
+        [Obsolete]
         public async System.Threading.Tasks.Task<CreateLookupResponse> CreateLookupAsync(string accountId, LookupRequest lookupRequest, int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken))
         {
             Bandwidth.Standard.Client.ApiResponse<CreateLookupResponse> localVarResponse = await CreateLookupWithHttpInfoAsync(accountId, lookupRequest, operationIndex, cancellationToken).ConfigureAwait(false);
@@ -370,6 +381,7 @@ public Bandwidth.Standard.Client.ApiResponse<CreateLookupResponse> CreateLookupW
         /// <param name="operationIndex">Index associated with the operation.</param>
         /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
         /// <returns>Task of ApiResponse (CreateLookupResponse)</returns>
+        [Obsolete]
         public async System.Threading.Tasks.Task<Bandwidth.Standard.Client.ApiResponse<CreateLookupResponse>> CreateLookupWithHttpInfoAsync(string accountId, LookupRequest lookupRequest, int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken))
         {
             // verify the required parameter 'accountId' is set
@@ -444,6 +456,7 @@ public Bandwidth.Standard.Client.ApiResponse<CreateLookupResponse> CreateLookupW
         /// <param name="requestId">The phone number lookup request ID from Bandwidth.</param>
         /// <param name="operationIndex">Index associated with the operation.</param>
         /// <returns>LookupStatus</returns>
+        [Obsolete]
         public LookupStatus GetLookupStatus(string accountId, string requestId, int operationIndex = 0)
         {
             Bandwidth.Standard.Client.ApiResponse<LookupStatus> localVarResponse = GetLookupStatusWithHttpInfo(accountId, requestId);
@@ -458,6 +471,7 @@ public LookupStatus GetLookupStatus(string accountId, string requestId, int oper
         /// <param name="requestId">The phone number lookup request ID from Bandwidth.</param>
         /// <param name="operationIndex">Index associated with the operation.</param>
         /// <returns>ApiResponse of LookupStatus</returns>
+        [Obsolete]
         public Bandwidth.Standard.Client.ApiResponse<LookupStatus> GetLookupStatusWithHttpInfo(string accountId, string requestId, int operationIndex = 0)
         {
             // verify the required parameter 'accountId' is set
@@ -530,6 +544,7 @@ public Bandwidth.Standard.Client.ApiResponse<LookupStatus> GetLookupStatusWithHt
         /// <param name="operationIndex">Index associated with the operation.</param>
         /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
         /// <returns>Task of LookupStatus</returns>
+        [Obsolete]
         public async System.Threading.Tasks.Task<LookupStatus> GetLookupStatusAsync(string accountId, string requestId, int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken))
         {
             Bandwidth.Standard.Client.ApiResponse<LookupStatus> localVarResponse = await GetLookupStatusWithHttpInfoAsync(accountId, requestId, operationIndex, cancellationToken).ConfigureAwait(false);
@@ -545,6 +560,7 @@ public Bandwidth.Standard.Client.ApiResponse<LookupStatus> GetLookupStatusWithHt
         /// <param name="operationIndex">Index associated with the operation.</param>
         /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
         /// <returns>Task of ApiResponse (LookupStatus)</returns>
+        [Obsolete]
         public async System.Threading.Tasks.Task<Bandwidth.Standard.Client.ApiResponse<LookupStatus>> GetLookupStatusWithHttpInfoAsync(string accountId, string requestId, int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken))
         {
             // verify the required parameter 'accountId' is set