USPS
USPS lists a few samples of what its numbers might look like on this page under the collapsible “What does my tracking number look like?” section.
SERVICE / SAMPLE NUMBER
USPS Tracking®
9400 1000 0000 0000 0000 00
Priority Mail®
9205 5000 0000 0000 0000 00
Certified Mail®
9407 3000 0000 0000 0000 00
Collect On Delivery Hold For Pickup
9303 3000 0000 0000 0000 00
Global Express Guaranteed®
82 000 000 00
Priority Mail Express International®
EC 000 000 000 US
Priority Mail Express®
9270 1000 0000 0000 0000 00
EA 000 000 000 US
Priority Mail International®
CP 000 000 000 US
Registered Mail™
9208 8000 0000 0000 0000 00
Signature Confirmation™
9202 1000 0000 0000 0000 00
DHL
DHL has a support page which lists various formats for its tracking numbers:
DHL Express
- 10 digits numerical only
-
OR starts with 000, JJD01, JJD00, JVGL or similar.
-
Examples: 1234567890 or JJD0099999999
DHL eCommerce Solutions
- Typically starts with GM, LX, RX or up to five letters.
- The ID length might vary from 10 to 39 characters.
-
Examples: GM99999999999 or 999999999999999999
DHL Parcel
- Starts with 3S, JVGL or JJD
-
Examples: 3SBCC000123456 or JVGL9999999999
DHL Global Forwarding
- 7-digit numerical only
Example : 1234567
- Starts with 1 number, followed by 2 letters and 4 to 6 numbers
Example : 1AB12345
- Starts with 3 to 4 letters
Example : ABC123456
- Starts with 3-digit carrier code, followed by hyphen (-), followed by the 8-digit masterbill number.
Example : 123-12345678
DHL Freight
- Order Code: starts with 2 to 3 letters, followed by hyphen (-), 2 to 3 letters, hyphen (-) and 7 numbers
Example : ABC-DE-1234567
- Starts with 4 numbers, followed by hyphen (-) and 5 numbers
Example : 1234-12345
- Numeric only with the length 9, 10 or 14
Example : 123456789
UPS
UPS has a help page which lists its common tracking number formats:
UPS tracking numbers appear in the following formats:
- 1Z9999999999999999
- 999999999999
- T9999999999
- 999999999
As well as a host of other less-common tracking numbers it will accept:
Other UPS trackable numbers
UPS will also track the following types of tracking numbers, which contain from seven to 20 characters:
-
Delivery Order/Sub-PRO Number: Less-Than-Truckload (LTL)/and Truckload (TL) child shipment tracking numbers
-
House Air Waybill: Used for air freight movement
-
House Bill of Lading: Used for ocean freight movement
-
PRO Number: Used for surface freight movement
-
UPS InfoNotice: A bar-coded notice, which includes a 12-digit reference number, given on first delivery attempt in select countries
-
UPS Service Notice: A notice given on first delivery attempt in select countries
UPS Mail Innovations Tracking Numbers
You can track your UPS Mail Innovations piece on both ups.com and upsmi.com. UPS Mail Innovations tracking numbers differ from a small package reference number in length and terminology.
UPS Mail Innovations tracking numbers appear in the following formats:
-
United States Postal Service Delivery Confirmation Number: a 22-34 numerical identifier assigned by the U.S. Postal Service when Delivery Confirmation is requested
-
Sequence Number (MMS/MMI Number): an 18-digit number assigned internally by UPS Mail Innovations or UPS Worldship
-
Mail Innovations Compliant Package ID: a barcode-type identifier assigned by the shipper to each mail piece, using the structure below:
MIXXXXXXNNNNNNNNNNNNNNNNNNNNNN
This indicator is made up of the following three components:
-
MI - a UPS Mail Innovations indicator
-
XXXXXX - a unique 6-digit customer number assigned by UPS Mail Innovations
-
NNNNNNNNNNNNNNNNNNNNNN - a unique number, up to 22 characters, assigned by the shipper to identify a mail piece. Use alpha and/or numeric characters with no spaces or symbols. The same ID should not be reused for other mail pieces for at least six months.
UPS website is also announcing a change in tracking information provided, though I am unsure what this actually means:
Upcoming Changes: Limiting display of reference number tracking details for improved security.
UPS is changing how the reference number tracking results are displayed to provide additional protection:
- Tracking details will be mostly masked with only basic reference number tracking details available.
- Senders that have saved the shipment’s account number as a payment method in their profile, or in their company profile, will see the full tracking details.
DPD
I could not find anything as detailed for DPD, but one of its FAQ pages mentions that at least some of it numbers will be 14-digit.
If you do aim to be comprehensive, Amazon does have a list of carriers that it uses, this could be useful to get a sense of what other less-advertised or region-specific carriers exist:
https://www.amazon.com/gp/help/customer/display.html?nodeId=GBPEXEXYULHB5WCH