Parcel shipping refers to the transportation service for small, individual packages typically weighing under 150 pounds (70 kg), handled through integrated carrier networks that specialize in small-package delivery to residential and commercial addresses. Parcel carriers such as UPS, FedEx, DHL, and postal services operate extensive ground and air networks with sophisticated sorting facilities, providing door-to-door delivery with tracking capabilities and defined service levels (same-day, next-day, ground economy). Parcel shipping is distinguished from less-than-truckload (LTL) and truckload freight by its focus on individual package handling, standardized pricing based on dimensional weight, extensive pickup/delivery infrastructure, and comprehensive track-and-trace technology. This shipping mode dominates e-commerce fulfillment and business-to-consumer (B2C) deliveries. 

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