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# serviceCurrentRadioAccessTechnology

A dictionary containing the current radio access technology registered to each service.

```
var serviceCurrentRadioAccessTechnology: [String : String]? { get }
```

## Discussion

The keys for the [`serviceCurrentRadioAccessTechnology`](/documentation/CoreTelephony/CTTelephonyNetworkInfo/serviceCurrentRadioAccessTechnology) dictionary are <doc://com.apple.documentation/documentation/Foundation/NSString> objects, each of which represents a service. The entry associated with a key is `nil` if the service is not registered on any network.

Although the actual value of a key isn’t important, you can also use it to get the carrier information associated with the service. To do so, pass the key to the [`serviceSubscriberCellularProviders`](/documentation/CoreTelephony/CTTelephonyNetworkInfo/serviceSubscriberCellularProviders) dictionary.

---

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