---
title: "isKnownHandle(_:)"
framework: permissionkit
role: symbol
role_heading: Instance Method
path: "permissionkit/communicationlimits/isknownhandle(_:)"
---

# isKnownHandle(_:)

A Boolean that checks if the system knows the given handle.

## Declaration

```swift
final func isKnownHandle(_ handle: CommunicationHandle) async -> Bool
```

## Parameters

- `handle`: A communication handle. This could be an email, phone number, username, or any other person identifier.

## Return Value

Return Value Whether or not the given handle is known by the system.

## See Also

### Checking known handles

- [knownHandles(in:)](permissionkit/communicationlimits/knownhandles(in:).md)