diff --git a/lib/modem.js b/lib/modem.js
index d897b65..15379db 100644
--- a/lib/modem.js
+++ b/lib/modem.js
@@ -127,7 +127,7 @@ function onCOPS(data) {
     [, , modemInfo.networkId] = modemInfo.cops.split(',');
 
     if (modemInfo.networkId) {
-        modemInfo.networkName = dbCops[modemInfo.networkId];
+        modemInfo.networkName = dbCops[modemInfo.networkId] || modemInfo.networkId;
     }
 }