"Prefix CW" in a USPS tracking number indicates that the package was shipped using a USPS service called "USPS Priority Mail Express International." This service provides fast international delivery with tracking and insurance included.
From my personal experience this is a package is coming from Canada and it will be deliver thru the USPS system
According to USPS website, Customs Forms will begin with two letters (such as "CP", "CJ", "LC", or "LJ") followed by nine numbers followed by "US"., i.e., CJ000000000US or LJ000000000US (See related link below.)
A USPS package has a 30-digit tracking number to uniquely identify each shipment and facilitate its tracking throughout the delivery process. The tracking number is composed of letters and numbers that provide information about the package's status and location as it moves through the postal system. This system helps both the sender and recipient monitor the package's progress and ensures efficient handling and delivery. Each segment of the number can indicate specific details about the shipping service used and the destination.
It means they're done processing the item, and it is being ready to be dispatched to be delivered to your unit/mailbox.
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Service Model
Normally "ship short" means that not all the products or quantites were shipped on that tracking number.
A standard American phone number consists of three parts. An area code, a prefix, and a suffix. In the following phone number: (987) 654-3211, the 654 would be the prefix.
Identifies the model series.
It apparently means that DHL has transferred the package to another carrier for local delivery. DHL tracking ends at that point. In my case, final delivery was by USPS, and the small package appeared in my mailbox two days after the "SACK ACCEPT OR PICKUP" date.
what does the prefix polo mean