diff --git a/integration-tests/src/main/java/org/signal/integration/Operations.java b/integration-tests/src/main/java/org/signal/integration/Operations.java
index 2eb48fd05..acf60189c 100644
--- a/integration-tests/src/main/java/org/signal/integration/Operations.java
+++ b/integration-tests/src/main/java/org/signal/integration/Operations.java
@@ -133,6 +133,13 @@ public final class Operations {
     return user;
   }
 
+  public record PrescribedVerificationNumber(String number, String verificationCode) {}
+  public static PrescribedVerificationNumber prescribedVerificationNumber() {
+      return new PrescribedVerificationNumber(
+          CONFIG.prescribedRegistrationNumber(),
+          CONFIG.prescribedRegistrationCode());
+  }
+
   public static void deleteUser(final TestUser user) {
     apiDelete("/v1/accounts/me").authorized(user).executeExpectSuccess();
   }
diff --git a/integration-tests/src/main/java/org/signal/integration/config/Config.java b/integration-tests/src/main/java/org/signal/integration/config/Config.java
index 6c7b4a77a..ec02e1cb9 100644
--- a/integration-tests/src/main/java/org/signal/integration/config/Config.java
+++ b/integration-tests/src/main/java/org/signal/integration/config/Config.java
@@ -10,5 +10,7 @@ import org.whispersystems.textsecuregcm.configuration.DynamoDbClientConfiguratio
 public record Config(String domain,
                      String rootCert,
                      DynamoDbClientConfiguration dynamoDbClientConfiguration,
-                     DynamoDbTables dynamoDbTables) {
+                     DynamoDbTables dynamoDbTables,
+                     String prescribedRegistrationNumber,
+                     String prescribedRegistrationCode) {
 }
diff --git a/integration-tests/src/test/java/org/signal/integration/RegistrationTest.java b/integration-tests/src/test/java/org/signal/integration/RegistrationTest.java
index b27faf800..a5319f7b6 100644
--- a/integration-tests/src/test/java/org/signal/integration/RegistrationTest.java
+++ b/integration-tests/src/test/java/org/signal/integration/RegistrationTest.java
@@ -19,7 +19,10 @@ public class RegistrationTest {
   public void testRegistration() throws Exception {
     final UpdateVerificationSessionRequest originalRequest = new UpdateVerificationSessionRequest(
         "test", UpdateVerificationSessionRequest.PushTokenType.FCM, null, null, null, null);
-    final CreateVerificationSessionRequest input = new CreateVerificationSessionRequest("+19995550102", originalRequest);
+
+    final Operations.PrescribedVerificationNumber params = Operations.prescribedVerificationNumber();
+    final CreateVerificationSessionRequest input = new CreateVerificationSessionRequest(params.number(),
+        originalRequest);
 
     final VerificationSessionResponse verificationSessionResponse = Operations
         .apiPost("/v1/verification/session", input)
@@ -46,7 +49,8 @@ public class RegistrationTest {
         .executeExpectSuccess(VerificationSessionResponse.class);
 
     // verify code
-    final SubmitVerificationCodeRequest submitVerificationCodeRequest = new SubmitVerificationCodeRequest("265402");
+    final SubmitVerificationCodeRequest submitVerificationCodeRequest = new SubmitVerificationCodeRequest(
+        params.verificationCode());
     final VerificationSessionResponse codeVerified = Operations
         .apiPut("/v1/verification/session/%s/code".formatted(sessionId), submitVerificationCodeRequest)
         .executeExpectSuccess(VerificationSessionResponse.class);