; (ii) providing multipoint wireless network connectivity that facilitates data transmission between structures and devices on eligible land, including structures and devices described in clause (i); and (iii) supporting— (I) the construction of wireless infrastructure, including poles, towers, base stations, or other structures, regardless of whether the structure has an existing antenna facility, that is used or will be used for the provision of wireless service; or (II) the retrofitting of existing towers or vertical structures, such as water towers, grain elevators, or center pivots, to accommodate wireless infrastructure. (12) Remote area The term remote area means the frontier and remote ZIP Code areas published by the Economic Research Service. (13) Underserved The term underserved means, with respect to eligible land, that the eligible land lacks access to broadband internet access service that is capable of a speed of not less than— (A) a 100-Mbps downstream transmission capacity; and (B) a 20-Mbps upstream transmission capacity. (14) Unserved The term unserved means, with respect to eligible land, eligible land that lacks access to broadband internet access service that is capable of a speed of not less than— (A) a 25-Mbps downstream transmission capacity