42 Planning and development of electronic communication networks, namely, telecommunications network development services, broadband network development services; engineering services, namely, engineering services related to the telecommunications industry; engineering services, namely, design services for broadband service providers; telecommunications engineering services, namely, network development services, broadband network development services; telecommunications infrastructure engineering services, namely, telecommunications network development engineering services, broadband network development engineering services, aerial infrastructure engineering services, underground and substructure self-perform engineering services, placement and splicing of fiber optic cables engineering services; pole maintenance engineering services; horizontal directional drilling for installing underground pipelines and telecommunications cables; directional drilling, missile bore drilling, and trenching for installing structured cabling, fiber optic cable, and cable for telecommunications; civil engineering; electrical engineering