Adtelligent SSP added targeting by Zip Codes on campaign settings level.
To start using this feature, you need to have a list of ZIP codes.
To create a ZIP code list, go to the Tools -> Global Lists -> ZIP Code List.
Once the list is created, attach it. Go to Campaign Settings -> Advanced settings -> Targeting.
1. Select your zip code list from the drop down menu
2. Pick the list and set it as white or block and click the Save button.