> [!CAUTION]
> **Caution:** This documentation is for Google Ads API **v24** . The latest active version is [**v26**](https://developers.google.com/google-ads/api/reference/rpc/latest/AdSubNetworkTypeEnum.AdSubNetworkType).

Enumerates Google Ads sub network types.

[Proto definition ![GitHub](https://developers.google.com/site-assets/logo-github.svg)](https://github.com/googleapis/googleapis/blob/master/google/ads/googleads/v24/enums/ad_sub_network_type.proto)

| Enums ||
|---|---|
| ## `UNKNOWN` | Unknown. |
| ## `UNSEGMENTED` | The whole network without any sub network type segmentation. |
| ## `UNSPECIFIED` | Not specified. |
| ## `YOUTUBE_INFEED` | Ads served on YouTube feed surfaces, such as YouTube Home or Watch Next. |
| ## `YOUTUBE_INSTREAM` | Ads served in-stream of YouTube organic videos. |
| ## `YOUTUBE_SHORTS` | Ads served on the YouTube Shorts feed. |