This chapter discusses the set of network access technologies used for the Internet of Things (IoT). It describes the scope of "things" that can be connected and the wide range of requirements placed on the networks to support the many different types of device. The chapter describes how existing networking technologies can support some of these devices and connectivity requirements, and then looks in detail at some of the new network technologies and capabilities that are being developed specifically to support IoT. The connectivity of IoT devices is achieved through the access network – that part of the network which is concerned with moving data to and from a sensor or edge device into a backhaul network, often via a gateway. The chapter also discusses the design trade-offs with a focus on the emerging technologies dedicated to IoT requirements.