diff --git a/esphome/components/ct002/ct002.cpp b/esphome/components/ct002/ct002.cpp
index 58d4213b..fbb688ff 100644
--- a/esphome/components/ct002/ct002.cpp
+++ b/esphome/components/ct002/ct002.cpp
@@ -569,6 +569,7 @@ bool CT002Component::validate_ct_mac_(const std::vector<std::string> &fields) co
   if (this->ct_mac_.empty()) return true;
   if (fields.size() < 4) return false;
   std::string req(fields[3]);
+  if (req.empty() || req == "000000000000") return true;
   for (auto &c : req) c = static_cast<char>(std::tolower(c));
   std::string cfg(this->ct_mac_);
   for (auto &c : cfg) c = static_cast<char>(std::tolower(c));
diff --git a/src/astrameter/ct002/ct002.py b/src/astrameter/ct002/ct002.py
index edd8783a..08984702 100644
--- a/src/astrameter/ct002/ct002.py
+++ b/src/astrameter/ct002/ct002.py
@@ -1316,6 +1316,8 @@ def _ct_mac_matches(self, request: CT002Request) -> bool:
         """Whether *request* names the CT MAC we are configured to answer for."""
         if not self.ct_mac:
             return True
+        if request.ct_mac in ("", "000000000000"):
+            return True
         return bool(request.ct_mac) and request.ct_mac.lower() == self.ct_mac.lower()
 
     async def _safe_handle_request(