Domestic first class and media mail shipments do not automatically include tracking. You must request tracking be added, for which there is an additional charge. [2] X Research source Most other forms of shipping (that are more expensive than first class), such as Priority Mail, do include tracking. Not all forms of tracking are equal. As a general rule, the more expensive the form of shipping, the more detailed the tracking information will be.

The number of digits and the precise format of the tracking number may differ depending on the form of shipment you selected. For a list of the differing formats, see here.

You will see “Arrived at USPS Origin Facility” indicating the moment the package was first entered in the USPS sorting system. This is not necessarily the same as the first Post Office that the package was in, but the first place in which it was prepared for transshipment to the next point. “Arrived at Post Office” will be seen when the package has arrived in the vicinity of its final delivery but still remains within a USPS facility. The description “Out for Delivery” is perhaps the most straightforward. The package is currently with a postal service agent for delivery. “Unable to Deliver” will appear if the package required a signature or further instructions in order to facilitate delivery. At this point, the package will usually be returned to the local postal facility for later delivery.

In addition, you can request that a copy of the signatory’s name be sent to you following successful delivery. There will be an additional charge of roughly $3. [6] X Research source Signature confirmation is not available for delivery to PO boxes and may not be available for shipment to military bases or diplomatic posts, including all that are considered APO (Army Post Office), FPO (Fleet Post Office), or DPO (Diplomatic Post Office). [7] X Research source

Along with the name of the signatory, you will also receive information on the final delivery address or pickup site. If the receiver had requested that the shipment be sent to an alternative site, for example, you would be informed precisely when and where the final deliver was made. The cost is an additional $3. 25 for the mailed receipt or $2. 00 for an emailed receipt. [9] X Research source