diff --git a/src/Altinn.Notifications.Core/Helpers/MobileNumberHelper.cs b/src/Altinn.Notifications.Core/Helpers/MobileNumberHelper.cs
index f2bd74ca..aeb69802 100644
--- a/src/Altinn.Notifications.Core/Helpers/MobileNumberHelper.cs
+++ b/src/Altinn.Notifications.Core/Helpers/MobileNumberHelper.cs
@@ -49,8 +49,20 @@ public static bool IsValidMobileNumber(string? mobileNumber)
             }
 
             PhoneNumberUtil phoneNumberUtil = PhoneNumberUtil.GetInstance();
+
+            bool isValidNumber;
+            
+            try
+            {
             PhoneNumber phoneNumber = phoneNumberUtil.Parse(mobileNumber, null);
-            return phoneNumberUtil.IsValidNumber(phoneNumber);
+            isValidNumber = phoneNumberUtil.IsValidNumber(phoneNumber);
+            }
+            catch (NumberParseException)
+            {
+                isValidNumber = false;
+            }
+
+            return isValidNumber;
         }
     }
 }