Transportation

PRO Number

A unique tracking number assigned to freight shipments in the U.S. for transportation and tracking purposes.

Updated 2026-03-13
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Definition

PRO numbers allow shippers, carriers, and receivers to track shipments and reference them in documentation or billing.

Overview of PRO Number

A PRO number (Progressive Rotating Order number, or simply Progressive Order number) is a unique alphanumeric identifier assigned by an LTL (less-than-truckload) carrier to a specific freight shipment for tracking, billing, and communication purposes throughout the shipment's lifecycle in the carrier's network. It functions as the primary reference number for all interactions with the carrier regarding that shipment — tracking the freight through origin terminal processing, linehaul transit, destination terminal processing, and delivery. PRO numbers are printed on the freight bill (the carrier's invoice) and are used to access carrier tracking websites, file freight claims, request delivery status updates, and dispute billing charges. Different carriers use different PRO number formats — some are purely numeric, others alphanumeric with carrier prefix codes — but all serve the same tracking and reference function. In warehouse and 3PL operations, the PRO number is assigned by the carrier either when the bill of lading is electronically tendered to the carrier through a TMS or EDI connection, or at the time of physical pickup when the driver assigns the PRO from a pre-printed PRO label book. For LTL shippers using carrier-provided shipping software or EDI, PRO numbers are pre-assigned before pickup and printed on the freight label, enabling tracking to begin as soon as the shipment is booked. For outbound LTL shipments from a warehouse, the PRO number is captured in the TMS or WMS at the time of pickup so that shipment tracking can be initiated and communicated to the consignee. For inbound freight, obtaining the PRO number from the supplier or carrier in advance of delivery enables the warehouse to pre-plan receiving resources. WareMatch facilitates connections between brands and freight partners who use standardized PRO number tracking systems, ensuring that all shipments moving through the logistics network have proper carrier identification for end-to-end visibility and exception management.

Role

A unique tracking number assigned to freight shipments in the U.S. for transportation and tracking purposes.

Focus

A PRO number (Progressive Rotating Order number, or simply Progressive Order number) is a unique alphanumeric identifier assigned by an LTL (less-than-truckload) carrier to a specific freight shipment for tracking, billing, and communication purposes throughout the shipment's lifecycle in the carrier's network. It functions as the primary reference number for all interactions with the carrier regarding that shipment — tracking the freight through origin terminal processing, linehaul transit, destination terminal processing, and delivery. PRO numbers are printed on the freight bill (the carrier's invoice) and are used to access carrier tracking websites, file freight claims, request delivery status updates, and dispute billing charges. Different carriers use different PRO number formats — some are purely numeric, others alphanumeric with carrier prefix codes — but all serve the same tracking and reference function. In warehouse and 3PL operations, the PRO number is assigned by the carrier either when the bill of lading is electronically tendered to the carrier through a TMS or EDI connection, or at the time of physical pickup when the driver assigns the PRO from a pre-printed PRO label book. For LTL shippers using carrier-provided shipping software or EDI, PRO numbers are pre-assigned before pickup and printed on the freight label, enabling tracking to begin as soon as the shipment is booked. For outbound LTL shipments from a warehouse, the PRO number is captured in the TMS or WMS at the time of pickup so that shipment tracking can be initiated and communicated to the consignee. For inbound freight, obtaining the PRO number from the supplier or carrier in advance of delivery enables the warehouse to pre-plan receiving resources. WareMatch facilitates connections between brands and freight partners who use standardized PRO number tracking systems, ensuring that all shipments moving through the logistics network have proper carrier identification for end-to-end visibility and exception management.

Example

See the definition above for context.

Benefits

  • PRO numbers enable real-time tracking of LTL freight through carrier network portals from pickup through final delivery.
  • A unique PRO number provides a single reference for all carrier communications, simplifying exception resolution and status inquiry calls.
  • PRO numbers on freight invoices enable efficient freight audit matching between billed charges and shipment records in TMS systems.
  • Capturing PRO numbers at outbound dispatch enables proactive tracking and exception alerts before shipments become overdue.
  • Freight claims filed with the correct PRO number reach the right shipment record immediately, accelerating claim investigation timelines.
  • Pre-assignment of PRO numbers before pickup enables advance shipping notifications to consignees with carrier tracking links.

FAQs

Q: How is a PRO number different from a bill of lading number?

A: A bill of lading (BOL) number is assigned by the shipper and appears on the shipper-generated bill of lading document. A PRO number is assigned by the carrier and represents the carrier's internal tracking reference for the shipment. Both numbers reference the same shipment, but a PRO number accesses the carrier's tracking system while a BOL number is used in the shipper's TMS and documentation. For the most effective tracking and claims purposes, both numbers should be recorded together in the TMS.

Q: When is a PRO number assigned — before or after pickup?

A: With modern EDI and carrier portal integrations, PRO numbers can be pre-assigned when a load tender is transmitted electronically to the carrier, before physical pickup occurs. The carrier's system auto-assigns a PRO when it accepts the electronic tender, enabling tracking to start before the driver arrives. For manual (paper) BOL processes, the PRO is assigned by the carrier driver at time of pickup from a pre-printed PRO label roll or assigned at the origin terminal when the freight arrives.

Q: Can a shipper track an LTL shipment using the BOL number instead of the PRO number?

A: Some carrier tracking systems support lookup by both the carrier's PRO number and the shipper's BOL number, though PRO number lookup is more reliable and universal. If a shipper only has the BOL number, they may need to contact the carrier's customer service to obtain the corresponding PRO number first. Best practice is to always obtain and record the PRO number from the carrier at or shortly after pickup for every outbound LTL shipment.

Q: What is a freight claim and how does the PRO number factor into filing one?

A: A freight claim is a formal demand for compensation from a carrier for loss, damage, shortage, or delay to a shipment in the carrier's custody. Filing a freight claim requires submitting the PRO number, BOL number, date and origin/destination of shipment, description and value of the claimed loss or damage, and supporting documentation (original invoice, photos of damage, delivery receipt notation). The PRO number routes the claim to the correct shipment record in the carrier's claims system and is required for the claim to be accepted for investigation.