What Does Network as a Service (NaaS) Mean?

Network as a service (NaaS) is a subscription-based delivery model that combines infrastructure-as-a-service (IaaS) with network and security services such as load balancing and unified threat management (UTM).

Techopedia Explains Network as a Service (NaaS)

Network as a service arose out of a very specific IT phenomenon. Around 2015, companies started to look more closely at the concept of SDN or software-defined networking. As this software-defined networking advanced, instead of utilizing hardware switches and nodes to drive network activity, companies started to virtualize the network process and use virtual logic entities to control the network. Network control became more centralized. Companies figured out how to untether network functionality from the physical infrastructure that used to be a prerequisite for company networking.