---
title: WISSID
framework: wifiinfrastructure
role: symbol
role_heading: Structure
path: wifiinfrastructure/wissid
---

# WISSID

The Service Set Identifier (SSID) for a Wi-Fi network, from which applications derive the human-readable network name.

## Declaration

```swift
struct WISSID
```

## Overview

Overview An SSID represents the identifier for a wireless network, as the Wi-Fi standard defines. Your app converts this binary data to text when displaying network names to people. The Wi-Fi standard defines SSIDs as binary values between 1 and 32 bytes long, without specifying a text encoding. This means SSID data can include: Embedded null bytes (0x00) Control characters and escape sequences Non-printable binary data Text in various encodings (UTF-8, ASCII, Latin-1, etc.) Mixed binary and text content Don’t assume SSID data represents UTF-8 encoded text. Use stringRepresentation(encoding:) to safely convert the raw data to a readable format. Since no standard encoding exists for SSIDs, different networks may use different text encodings or contain pure binary data. When converting SSIDs to strings: Try UTF-8 encoding first, as it’s most common. Fall back to other encodings if UTF-8 conversion fails. Handle cases where no text representation is possible. Consider displaying raw hexadecimal values for non-text SSIDs.

## Topics

### Working with SSIDs as a string

- [init(_:encoding:)](wifiinfrastructure/wissid/init(_:encoding:).md)
- [stringRepresentation(encoding:)](wifiinfrastructure/wissid/stringrepresentation(encoding:).md)

### Working with raw SSID data

- [init(_:)](wifiinfrastructure/wissid/init(_:).md)
- [data](wifiinfrastructure/wissid/data.md)

### Getting a description

- [description](wifiinfrastructure/wissid/description.md)

## Relationships

### Conforms To

- [CustomStringConvertible](swift/customstringconvertible.md)
- [Decodable](swift/decodable.md)
- [Encodable](swift/encodable.md)
- [Equatable](swift/equatable.md)
- [Hashable](swift/hashable.md)
- [Sendable](swift/sendable.md)
- [SendableMetatype](swift/sendablemetatype.md)

## See Also

### Common data

- [WIChannel](wifiinfrastructure/wichannel.md)
- [WIMACAddress](wifiinfrastructure/wimacaddress.md)