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The physical Internet (PI, or π) concept was developed to address the current unsustainability problem of logistics systems. The key physical elements in the PI include π-containers, π-nodes, and π-movers. The π-containers designed to be world-standard, smart, green, and modular are moved, handled, and stored throughout an open global logistic infrastructure. Meanwhile, the π-nodes and π-movers including physical systems and vehicles are designed to exploit as best as possible the characteristics of π-containers to facilitate material handling processes. Thus, the logistics industry vision is a key player poised to benefit from the Internet of Things (IoT) revolution since millions of π-containers with contained shipments being moved, tracked, and stored by a variety of the π-nodes and π-movers each day. This paper proposes first an information framework enabling IoT of the PI infrastructure and then a service-oriented architecture for the IoT applied for providing the IoT logistics services for the PI. A case study utilizing the architecture is presented to illustrate an efficient management service of logistics operations in the PI.