While an assessment framework for environmental impacts of the ICT sector does exist (as developed by ITU), best practices for equipment identification, developed specifically to assess the environmental impacts of network architecture remain lacking. In this Recommendation, key equipment in the networks are identified for smoother LCA calculations. Different types of network architecture employ different goods which entail differences in terms of energy usage, e-waste generation as well as environmental footprints. This Recommendation will examine three types of network architectures and suggest an appropriate set of equipment to be considered for each. This Recommendation will support network designers in determining the environmental and circular performance of different network architectures. This Recommendation utilises information compiled from stakeholders which can provide good insights into the specified potential challenge.