What Galterr said. DCN IS NOT tracking. Its proof of delivery. While sometimes it gets scanned at every stop, the majority of the time it wont show for a couple days. Ive had many DCN's show up after the delivery was made. I only will give it out if its late or there is an issue or I know the buyer. There really isnt a reason to give it out. Ill give it out to ease the mind of nervous buyers but the less that people enter DCN or tracking numbers in the usps website the better. And DONT use TOR when checking it...