Site Logo

LTL Carriers in ShipEngine

ShipEngine API provides many carrier options for LTL shipping and allows you to perform all your LTL shipping operations programmatically. There are some carriers, however, that do not offer all the ShipEngine API features programmatically, which means that we can't make them available to you in ShipEngine API. You will need to continue performing those operations using your existing processes. You can find information about which features are supported by each carrier below as well as a description of each feature.

LTL Carrier Information

The table below list information about the LTL carriers available in ShipEngine API. Click the heading for a description of the feature.

Carrier NameSCACsQuotesSpot QuotesPickupsTrackingAuto PRO #Documents
A. Duie Pyle Inc.PYLE
AAA Cooper TransportationAACT
ABF Freight Systems Inc.ABFS
ACI Motor Freight, IncAGCE
Averitt Express Inc.AVRT
Best Overnite ExpressBTVP
Central Freight LinesCENF
Central TransportCTII
CRH TransportationCRHM
CrossCountry Freight SolutionsCCYQ
Day & RossDAYR
Daylight Transport LLCDYLT
Dayton Freight Lines Inc.DAFG
Dependable Highway ExpressDPHE
Dohrn Transfer CompanyDHRN
Double D Express, IncDBDE
Dugan Truck LineDUBL
Estes Express LinesEXLA
FedEx Freight Priority / Economy (FedEx LTL Freight East / FedEx Freight National)
  • FXFE
  • FXNL
Forward Air Inc.FWDN
Forward Air, Inc
  • FWRA
  • FWDN
  • FWDA
Hercules FreightHRCF
Land Air Express, IncLREC
Magnum LogisticsMGUL
Mainfreight, Inc
  • MFGN
  • MIHD
Manitoulin TransportMANI
Metropolitan Warehouse & DeliveryMWDP
Midwest Motor ExpressMIDW
N&M Transfer CompanyNMTF
New Penn Motor ExpressNPME
Oak Harbor Freight Lines Inc.OAKH
Old Dominion Freight Lines Inc.ODFL
Peninsula Truck Lines, IncPENS
R & L Carriers Inc.
  • RLCA
  • RNLO
  • RLFV
R+L Carriers, Inc
  • RLFC
  • RNLO
  • RLRR
  • RLFV
  • GMLS
  • RCLA
Roadrunner Transportation Services Inc.RDFS
Saia LTL FreightSAIA
Southeastern Freight LinesSEFL
Southwestern Motor Transport, IncSMTL
Standard ForwardingSTDF
TForce Freight
  • TFIN
  • UPGF
TST-CF Express
  • CFWL
  • OVLD
U.S. Road Freight Express, IncUSRD
US Special Delivery
  • UPSD
  • UPPN
Valley Cartage CompanyVALC
Ward TruckingWARD
XPO Logistics (Con-Way Freight)
  • CNWY
  • CWCW
  • CWSE
  • CWNO
  • XPOL
  • CWWE
YRC Freight Inc
  • RDWY
  • YFSY
  • YRCA


Each LTL carrier is uniquely identified in the industry by its Standard Carrier Alpha Code or SCAC. Some carriers even have multiple SCACs that correspond to different types of offerings. ShipEngine API also uses the SCAC to uniquely identify the carrier.

In ShipEngine API, the SCAC is referred to as the carrier_code to streamline the terminology used across different types of shipping carriers. You will need to know the SCAC for your LTL carrier for any request that requires a carrier_id. Likewise, many responses will include the carrier_code, which corresponds to the SCAC.


ShipEngine API allows you to request a quote using contracted rates. Some carriers do not support requesting a quote programmatically. For those carriers, you can typically track shipments that you have shipped outside ShipEngine as well as retrieve shipping documents.

Spot Quotes

ShipEngine API allows you to request a spot quote from an LTL carrier based on excess capacity. Some carriers do not support spot quotes.


ShipEngine API allows you to programmatically request a pickup of your LTL shipment. You can provide all the details about the shipment as well as your preferred container type and accessorial services directly in the pickup request. If you'd like to know the cost in advance, you may first request a quote and then schedule a pickup using the quote_id.

There are some carriers that do not support programmatically scheduling a pickup. However, you will still need to perform this operation in ShipEngine API, even if the carrier does not support programmatic pickup requests. This operation creates the bill of lading, which will be needed by the carrier at pickup. You will then need to schedule the pickup directly with the carrier.


ShipEngine API allows you to track your LTL shipment using the PRO number. The PRO number is returned when you schedule a pickup. However, some carriers don't support automatic PRO number generation. For those carriers, a PRO number will be assigned by the carrier at the time of pickup. The table above indicates which carriers support automatic PRO number generation.


ShipEngine API allows you to retrieve the documents related to your LTL shipment, including the bill of lading, invoice, delivery receipt, and weight inspection certificate.