Monopole 1286501 — Castro Valley, CA
ConstructedFCC Antenna Structure Registration 1286501 — monopole near Castro Valley, California. Single-shaft steel pole, the standard modern cell-site structure.
At a glance
FCC Antenna Structure Registration 1286501 is a 22 m (72 ft) monopole near Castro Valley, Alameda County, California. Its registration status is constructed, with construction recorded on Feb 11, 2013. It is registered to AT&T Mobility Spectrum LLC, which holds 1,606 FCC structure registrations.
Registration record
FCC record
| Field | Value |
|---|---|
| Registration number (ASRN) | 1286501 |
| Unique system identifier | 2685929 |
| Status | Constructed (C) |
| Structure type | Monopole (MTOWER) |
| Date constructed | Feb 11, 2013 |
| Registration issued | Sep 30, 2025 |
Aviation safety
FAA & lighting
| Field | Value |
|---|---|
| FAA study number | 2016-AWP-7370-OE |
| FAA circular | — |
| Painting / lighting spec | NONE |
| Marking / lighting code | None (1) |
The painting/lighting specification is copied as filed: the FAA marking and lighting chapters and paragraphs cited in the ASR record. The marking/lighting code is decoded using the FCC registration form's code list.
Registered owner
Plano, TX · FRN 0014980726
Holds 1,606 FCC structure registrations — view the full portfolio →
Location
- Address
- 3301 Norbridge Avenue
- City
- Castro Valley
- State
- California
- ZIP
- 94546
- County
- Alameda County
- County FIPS
- 06001
- Coordinates
- 37.69119, -122.07614
Within ~40 km
Nearby structures
Lattice tower · Constructed
Building with antenna · Constructed
Building with antenna · Terminated
Building with antenna · Granted (not yet constructed)
Tower (type not specified) · Constructed
Building with antenna · Terminated
How tall is structure 1286501 compared with others?
At 22 m, structure 1286501 is about 28% below the 31 m average across the 420 structures registered in Alameda County. It is about 32% below the California average of 32 m across 11,860 registrations. Among the 24,638 registrations nationwide filed under the same structure-type code (MTOWER), the average overall height is 42 m, so this one is about half of that figure.
The site's filed ground elevation is 49 m, which puts the top of the structure 71 m above mean sea level.
Where is structure 1286501, and what is registered around it?
The registration places the structure near Castro Valley in Alameda County, California, at coordinates 37.69119, -122.07614, with the site address filed as "3301 Norbridge Avenue". Alameda County has 420 FCC-registered antenna structures, the 9th-largest count among the 58 California counties with registrations, and 231 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).
What does the status "Constructed" mean?
Constructed means the owner has notified the FCC that construction is complete, so the registry treats the structure as standing. The FCC issued registration 1286501 on Sep 30, 2025. Nationally, 141,895 of the 197,770 registrations (71.7%) carry the constructed status, including 6,866 in California.
Who owns antenna structure 1286501?
The FCC record lists AT&T Mobility Spectrum LLC of Plano, TX as the registered owner, under FCC Registration Number 0014980726. Across the registry it holds 1,606 structure registrations, the 20th-largest portfolio among the 7,865 owners with two or more, including 433 in California. Its most common filed structure-type code is MTOWER (627 registrations).
What FAA and lighting details are on file?
The registration cites FAA aeronautical study 2016-AWP-7370-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".
Frequently asked questions
How tall is antenna structure 1286501?
Its registered overall height above ground is 22 m (72 ft), and 71 m (234 ft) above mean sea level.
Who owns tower 1286501?
The registered owner is AT&T Mobility Spectrum LLC, which holds 1,606 FCC antenna structure registrations.
Where is antenna structure 1286501?
It is located near Castro Valley, Alameda County, California at 3301 Norbridge Avenue (37.69119, -122.07614). Its status is constructed; it was constructed on Feb 11, 2013.
What type of structure is 1286501?
It is filed with the FCC under structure-type code MTOWER, which decodes to "Monopole". Single-shaft steel pole, the standard modern cell-site structure. 24,638 registrations nationwide use the same code.
How many antenna structures are registered in Alameda County, CA?
Alameda County has 420 FCC-registered antenna structures, 231 of them constructed — the 9th-largest count among 58 counties in California.
Related pages
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Dataset updated . Source: FCC Antenna Structure Registration 1286501, weekly bulk file.
About this data
Source: FCC Antenna Structure Registration (ASR) database, as published October 13, 2026 — TowerCensus refreshes it weekly. See the methodology for how records are matched, cleaned and scored.
Cite as: TowerCensus, “Antenna structure 1286501, Castro Valley, Alameda County, California”, https://towercensus.com/towers/california/castro-valley-1286501 (data as of October 13, 2026).