A carrier criterion that can be used in campaign targeting.

[Proto definition ![GitHub](https://developers.google.com/site-assets/logo-github.svg)](https://github.com/googleapis/googleapis/blob/master/google/ads/googleads/v26/resources/carrier_constant.proto)

| Fields ||
|---|---|
| ## `country_code` | `string` Output only. The country code of the country where the carrier is located, for example, "AR", "FR", etc. |
| ## `id` | `int64` Output only. The ID of the carrier criterion. |
| ## `name` | `string` Output only. The full name of the carrier in English. |
| ## `resource_name` | `string` Output only. The resource name of the carrier criterion. Carrier criterion resource names have the form: `carrierConstants/{criterion_id}` |