# IsCustomAllocator

> Check whether this allocator is a custom allocator.

## Definition

* **Type:** Property
* **Namespace:** [Unity.Collections](/engine/6000.7/script-reference/unity/collections.md)
* **Assembly:** UnityEngine.ManagedKernelModule

```csharp
public bool IsCustomAllocator { get; }
```

### Remarks

The AllocatorHandle is a custom allocator if its Index is larger or equal to `FirstUserIndex`.