diff --git a/litellm/integrations/arize/arize_phoenix.py b/litellm/integrations/arize/arize_phoenix.py
index 4a6e0cec8c..c0cd8cbf91 100644
--- a/litellm/integrations/arize/arize_phoenix.py
+++ b/litellm/integrations/arize/arize_phoenix.py
@@ -35,13 +35,19 @@ class ArizePhoenixLogger(OpenTelemetry):
     @staticmethod
     def set_arize_phoenix_attributes(span: Span, kwargs, response_obj):
         _utils.set_attributes(span, kwargs, response_obj, ArizeOTELAttributes)
+        
+        # Set project name on the span for all traces to go to custom Phoenix projects
+        config = ArizePhoenixLogger.get_arize_phoenix_config()
+        if config.project_name:
+            from litellm.integrations.opentelemetry_utils.base_otel_llm_obs_attributes import safe_set_attribute
+            safe_set_attribute(span, "openinference.project.name", config.project_name)
+        
         return
 
     @staticmethod
     def get_arize_phoenix_config() -> ArizePhoenixConfig:
         """
         Retrieves the Arize Phoenix configuration based on environment variables.
-
         Returns:
             ArizePhoenixConfig: A Pydantic model containing Arize Phoenix configuration.
         """
@@ -95,7 +101,7 @@ class ArizePhoenixLogger(OpenTelemetry):
                 "PHOENIX_API_KEY must be set when using Phoenix Cloud (app.phoenix.arize.com)."
             )
 
-        project_name = os.environ.get("PHOENIX_PROJECT_NAME", "litellm-project")
+        project_name = os.environ.get("PHOENIX_PROJECT_NAME", "default")
 
         return ArizePhoenixConfig(
             otlp_auth_headers=otlp_auth_headers,
@@ -103,34 +109,8 @@ class ArizePhoenixLogger(OpenTelemetry):
             endpoint=endpoint,
             project_name=project_name,
         )
-
-    async def async_service_success_hook(
-        self,
-        payload: ServiceLoggerPayload,
-        parent_otel_span: Optional[Span] = None,
-        start_time: Optional[Union[datetime, float]] = None,
-        end_time: Optional[Union[datetime, float]] = None,
-        event_metadata: Optional[dict] = None,
-    ):
-        pass  # suppress additional spans
-
-    async def async_service_failure_hook(
-        self,
-        payload: ServiceLoggerPayload,
-        error: Optional[str] = "",
-        parent_otel_span: Optional[Span] = None,
-        start_time: Optional[Union[datetime, float]] = None,
-        end_time: Optional[Union[float, datetime]] = None,
-        event_metadata: Optional[dict] = None,
-    ):
-        pass  # suppress additional spans
-
-    def create_litellm_proxy_request_started_span(
-        self,
-        start_time: datetime,
-        headers: dict,
-    ):
-        pass  # suppress additional spans
+    
+    ## cannot suppress additional proxy server spans, removed previous methods.
 
     async def async_health_check(self):
 
diff --git a/litellm/integrations/opentelemetry.py b/litellm/integrations/opentelemetry.py
index 0d6c0a0c64..93dce578fe 100644
--- a/litellm/integrations/opentelemetry.py
+++ b/litellm/integrations/opentelemetry.py
@@ -1994,10 +1994,7 @@ class OpenTelemetry(CustomLogger):
         """
         Create a span for the received proxy server request.
         """
-        # don't create proxy parent spans for arize phoenix - [TODO]: figure out a better way to handle this
-        if self.callback_name == "arize_phoenix":
-            return None
-
+        
         return self.tracer.start_span(
             name="Received Proxy Server Request",
             start_time=self._to_ns(start_time),