SPSiteSubscriptionSiteCollection class

Represents a read-only collection that is used to enumerate the site collections in a subscription.

Namespace:  Microsoft.SharePoint
Assembly:  Microsoft.SharePoint (in Microsoft.SharePoint.dll)

public sealed class SPSiteSubscriptionSiteCollection : SPBaseCollection, 
	IEnumerable<SPSite>, IEnumerable

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.