---
title: isLoopback
framework: network
role: symbol
role_heading: Instance Property
path: network/ipv4address/isloopback
---

# isLoopback

A Boolean indicating whether this address is a loopback address for the local device.

## Declaration

```swift
var isLoopback: Bool { get }
```

## See Also

### Inspecting Address Properties

- [rawValue](network/ipv4address/rawvalue.md)
- [interface](network/ipv4address/interface.md)
- [isLinkLocal](network/ipv4address/islinklocal.md)
- [isMulticast](network/ipv4address/ismulticast.md)