diff --git a/service/src/main/java/org/whispersystems/textsecuregcm/controllers/CallRoutingController.java b/service/src/main/java/org/whispersystems/textsecuregcm/controllers/CallRoutingController.java
index 0ec9f231a..f158149a8 100644
--- a/service/src/main/java/org/whispersystems/textsecuregcm/controllers/CallRoutingController.java
+++ b/service/src/main/java/org/whispersystems/textsecuregcm/controllers/CallRoutingController.java
@@ -79,7 +79,7 @@ public class CallRoutingController {
     UUID aci = auth.getAccount().getUuid();
     rateLimiters.getCallEndpointLimiter().validate(aci);
 
-    if (experimentEnrollmentManager.isEnrolled(aci, "cloudflareTurn")) {
+    if (experimentEnrollmentManager.isEnrolled(auth.getAccount().getNumber(), aci, "cloudflareTurn")) {
       return cloudflareTurnCredentialsManager.retrieveFromCloudflare();
     }
 
diff --git a/service/src/main/java/org/whispersystems/textsecuregcm/experiment/ExperimentEnrollmentManager.java b/service/src/main/java/org/whispersystems/textsecuregcm/experiment/ExperimentEnrollmentManager.java
index b06267d7c..cf95dead8 100644
--- a/service/src/main/java/org/whispersystems/textsecuregcm/experiment/ExperimentEnrollmentManager.java
+++ b/service/src/main/java/org/whispersystems/textsecuregcm/experiment/ExperimentEnrollmentManager.java
@@ -40,16 +40,29 @@ public class ExperimentEnrollmentManager {
     final Optional<DynamicExperimentEnrollmentConfiguration> maybeConfiguration = dynamicConfigurationManager
         .getConfiguration().getExperimentEnrollmentConfiguration(experimentName);
 
-    return maybeConfiguration.map(config -> {
+    return maybeConfiguration
+        .map(config -> isAccountEnrolled(accountUuid, config)
+            .orElse(isEnrolled(accountUuid, config.getEnrollmentPercentage(), experimentName))
+        ).orElse(false);
+  }
 
-      if (config.getUuidSelector().getUuids().contains(accountUuid)) {
-        final int r = random.nextInt(100);
-        return r < config.getUuidSelector().getUuidEnrollmentPercentage();
-      }
+  Optional<Boolean> isAccountEnrolled(final UUID accountUuid, DynamicExperimentEnrollmentConfiguration config) {
+    if (config.getUuidSelector().getUuids().contains(accountUuid)) {
+      final int r = random.nextInt(100);
+      return Optional.of(r < config.getUuidSelector().getUuidEnrollmentPercentage());
+    }
 
-      return isEnrolled(accountUuid, config.getEnrollmentPercentage(), experimentName);
+    return Optional.empty();
+  }
 
-    }).orElse(false);
+  public boolean isEnrolled(final String e164, final UUID accountUuid, final String experimentName) {
+
+    final Optional<DynamicExperimentEnrollmentConfiguration> maybeConfiguration = dynamicConfigurationManager
+        .getConfiguration().getExperimentEnrollmentConfiguration(experimentName);
+
+    return maybeConfiguration
+        .flatMap(config -> isAccountEnrolled(accountUuid, config))
+        .orElse(isEnrolled(e164, experimentName));
   }
 
   public boolean isEnrolled(final String e164, final String experimentName) {
diff --git a/service/src/test/java/org/whispersystems/textsecuregcm/controllers/CallRoutingControllerTest.java b/service/src/test/java/org/whispersystems/textsecuregcm/controllers/CallRoutingControllerTest.java
index dabe5833d..1a91349c4 100644
--- a/service/src/test/java/org/whispersystems/textsecuregcm/controllers/CallRoutingControllerTest.java
+++ b/service/src/test/java/org/whispersystems/textsecuregcm/controllers/CallRoutingControllerTest.java
@@ -116,7 +116,7 @@ class CallRoutingControllerTest {
 
   @Test
   void testGetTurnEndpointsCloudflare() throws IOException {
-    when(experimentEnrollmentManager.isEnrolled(AuthHelper.VALID_UUID, "cloudflareTurn"))
+    when(experimentEnrollmentManager.isEnrolled(AuthHelper.VALID_NUMBER, AuthHelper.VALID_UUID, "cloudflareTurn"))
         .thenReturn(true);
 
     when(cloudflareTurnCredentialsManager.retrieveFromCloudflare()).thenReturn(new TurnToken("ABC", "XYZ",
diff --git a/service/src/test/java/org/whispersystems/textsecuregcm/experiment/ExperimentEnrollmentManagerTest.java b/service/src/test/java/org/whispersystems/textsecuregcm/experiment/ExperimentEnrollmentManagerTest.java
index 30fa3f720..45a7fea6c 100644
--- a/service/src/test/java/org/whispersystems/textsecuregcm/experiment/ExperimentEnrollmentManagerTest.java
+++ b/service/src/test/java/org/whispersystems/textsecuregcm/experiment/ExperimentEnrollmentManagerTest.java
@@ -46,7 +46,9 @@ class ExperimentEnrollmentManagerTest {
 
   private static final UUID ACCOUNT_UUID = UUID.randomUUID();
   private static final String UUID_EXPERIMENT_NAME = "uuid_test";
+  private static final String E164_AND_UUID_EXPERIMENT_NAME = "e164_uuid_test";
 
+  private static final String NOT_ENROLLED_164 = "+632025551212";
   private static final String ENROLLED_164 = "+12025551212";
   private static final String EXCLUDED_164 = "+18005551212";
   private static final String E164_EXPERIMENT_NAME = "e164_test";
@@ -71,6 +73,10 @@ class ExperimentEnrollmentManagerTest {
         .thenReturn(Optional.of(experimentEnrollmentConfiguration));
     when(dynamicConfiguration.getPreRegistrationEnrollmentConfiguration(E164_EXPERIMENT_NAME))
         .thenReturn(Optional.of(preRegistrationExperimentEnrollmentConfiguration));
+    when(dynamicConfiguration.getExperimentEnrollmentConfiguration(E164_AND_UUID_EXPERIMENT_NAME))
+        .thenReturn(Optional.of(experimentEnrollmentConfiguration));
+    when(dynamicConfiguration.getPreRegistrationEnrollmentConfiguration(E164_AND_UUID_EXPERIMENT_NAME))
+        .thenReturn(Optional.of(preRegistrationExperimentEnrollmentConfiguration));
 
     account = mock(Account.class);
     when(account.getUuid()).thenReturn(ACCOUNT_UUID);
@@ -112,6 +118,29 @@ class ExperimentEnrollmentManagerTest {
     assertEquals(75, counts.get(true));
   }
 
+  @Test
+  void testIsEnrolled_E164AndUuidExperiment() {
+    when(preRegistrationExperimentEnrollmentConfiguration.getIncludedCountryCodes()).thenReturn(Set.of("1"));
+    when(preRegistrationExperimentEnrollmentConfiguration.getEnrollmentPercentage()).thenReturn(0);
+    when(preRegistrationExperimentEnrollmentConfiguration.getEnrolledE164s()).thenReturn(Collections.emptySet());
+    when(preRegistrationExperimentEnrollmentConfiguration.getExcludedE164s()).thenReturn(Collections.emptySet());
+    when(preRegistrationExperimentEnrollmentConfiguration.getExcludedCountryCodes()).thenReturn(Collections.emptySet());
+
+    when(uuidSelector.getUuids()).thenReturn(Set.of(ACCOUNT_UUID));
+    when(uuidSelector.getUuidEnrollmentPercentage()).thenReturn(100);
+    assertTrue(experimentEnrollmentManager.isEnrolled(NOT_ENROLLED_164, account.getUuid(), E164_AND_UUID_EXPERIMENT_NAME));
+    when(uuidSelector.getUuidEnrollmentPercentage()).thenReturn(0);
+    assertFalse(experimentEnrollmentManager.isEnrolled(NOT_ENROLLED_164, account.getUuid(), E164_AND_UUID_EXPERIMENT_NAME));
+    assertFalse(experimentEnrollmentManager.isEnrolled(ENROLLED_164, account.getUuid(), E164_AND_UUID_EXPERIMENT_NAME));
+
+    when(uuidSelector.getUuids()).thenReturn(Collections.emptySet());
+    assertTrue(experimentEnrollmentManager.isEnrolled(ENROLLED_164, account.getUuid(), E164_AND_UUID_EXPERIMENT_NAME));
+    assertFalse(experimentEnrollmentManager.isEnrolled(NOT_ENROLLED_164, account.getUuid(), E164_AND_UUID_EXPERIMENT_NAME));
+    when(preRegistrationExperimentEnrollmentConfiguration.getEnrollmentPercentage()).thenReturn(100);
+    assertTrue(experimentEnrollmentManager.isEnrolled(ENROLLED_164, account.getUuid(), E164_AND_UUID_EXPERIMENT_NAME));
+    assertTrue(experimentEnrollmentManager.isEnrolled(NOT_ENROLLED_164, account.getUuid(), E164_AND_UUID_EXPERIMENT_NAME));
+  }
+
   @ParameterizedTest
   @MethodSource
   void testIsEnrolled_PreRegistrationExperiment(final String e164, final String experimentName,