Mast 1015263 — San Carlos, CA

At 11 m, structure 1015263 is about half of the 22 m average across the 330 structures registered in San Mateo County. It is about 33% of the California average of 32 m across 11,860 registrations. Among the 3,482 registrations nationwide filed under the same structure-type code (MAST), the average overall height is 53 m, so this one is about 20% of that figure.

The site's filed ground elevation is 168 m, which puts the top of the structure 179 m above mean sea level.

The registration places the structure near San Carlos in San Mateo County, California, at coordinates 37.51003, -122.27661, with the site address filed as "SHELFORD AVE (Belmont Hill #301124)". San Mateo County has 330 FCC-registered antenna structures, the 11th-largest count among the 58 California counties with registrations, and 153 of them are marked constructed. California as a whole has 11,860 registrations, the 2nd-largest total among the 50 states and DC.

The tallest other registered structure within about 40 km is San Francisco, CA · 1001289, a lattice tower at 298 m (constructed).

Dismantled means the owner has notified the FCC that the structure was taken down. The FCC issued registration 1015263 on Sep 15, 2024. Nationally, 12,669 of the 197,770 registrations (6.4%) carry the dismantled status, including 960 in California.

The FCC record lists American Towers, LLC of Woburn, MA as the registered owner, under FCC Registration Number 0011498342. Across the registry it holds 21,809 structure registrations, the largest portfolio among the 7,865 owners with two or more. Its most common filed structure-type code is LTOWER (5,885 registrations).

The registration cites FAA aeronautical study 2010-AWP-6613-OE, the FAA review of the structure's effect on air navigation. Its marking and lighting code, 1, is listed on the FCC registration form as "None".