Primetime Ad Insertion supports ad creative storage on either customer CDNs or Adobe-hosted CDNs.
Primetime Ad Insertion by default serves transcoded ad creatives from Adobe-hosted CDNs (Akamai). Customers can choose additional CDN locations to host the transcoded asset, or use the Adobe-hosted CDN as an origin for their own CDNs. Both of these cases allow for content and ad creatives to be served from the same CDN and/or hostname.
For Multi-CDN delivery, using Primetime Ad Insertion as a CDN origin, please refer to: Manifest Rewriting
To enable Multi-CDN storage/uploading, please contact your technical account manager.