Monopole 1048351 — Hillsborough, CA
DismantledFCC Antenna Structure Registration 1048351 — monopole near Hillsborough, California. Single-shaft steel pole, the standard modern cell-site structure.
At a glance
FCC Antenna Structure Registration 1048351 is a 9 m (30 ft) monopole near Hillsborough, San Mateo County, California. Its registration status is dismantled, with construction recorded on Jul 8, 1996, and the FCC record shows it dismantled on Mar 22, 2016. It is registered to T-Mobile West LLC, which holds 1,634 FCC structure registrations.
Registration record
FCC record
| Field | Value |
|---|---|
| Registration number (ASRN) | 1048351 |
| Unique system identifier | 610324 |
| Status | Dismantled (I) |
| Structure type | Monopole (MTOWER) |
| Date constructed | Jul 8, 1996 |
| Registration issued | Apr 18, 2016 |
| Date dismantled | Mar 22, 2016 |
Aviation safety
FAA & lighting
| Field | Value |
|---|---|
| FAA study number | 2011-AWP-3937-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
Bellevue, WA · FRN 0002837276
Holds 1,634 FCC structure registrations — view the full portfolio →
Location
- Address
- 553 DARRELL ROAD
- City
- Hillsborough
- State
- California
- ZIP
- 94010
- County
- San Mateo County
- County FIPS
- 06081
- Coordinates
- 37.55186, -122.37569
Within ~40 km
Nearby structures
Lattice tower · Constructed
Building with antenna · Constructed
Building with antenna · Granted (not yet constructed)
Building with antenna · Terminated
Building with antenna · Terminated
Building with antenna · Terminated
How tall is structure 1048351 compared with others?
At 9 m, structure 1048351 is about 41% of the 22 m average across the 330 structures registered in San Mateo County. It is about 28% of the California average of 32 m across 11,862 registrations. Among the 24,665 registrations nationwide filed under the same structure-type code (MTOWER), the average overall height is 42 m, so this one is about 22% of that figure.
The supporting structure itself measures 7 m; antennas and other appurtenances on top bring the overall height above ground to 9 m. The site's filed ground elevation is 224 m, which puts the top of the structure 233 m above mean sea level.
Where is structure 1048351, and what is registered around it?
The registration places the structure near Hillsborough in San Mateo County, California, at coordinates 37.55186, -122.37569, with the site address filed as "553 DARRELL ROAD". 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 11,862 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 "Dismantled" mean?
Dismantled means the owner has notified the FCC that the structure was taken down. The FCC issued registration 1048351 on Apr 18, 2016. Nationally, 12,705 of the 197,833 registrations (6.4%) carry the dismantled status, including 961 in California.
Who owns antenna structure 1048351?
The FCC record lists T-Mobile West LLC of Bellevue, WA as the registered owner, under FCC Registration Number 0002837276. Across the registry it holds 1,634 structure registrations, the 17th-largest portfolio among the 7,865 owners with two or more, including 785 in California. Its most common filed structure-type code is BANT (372 registrations).
What FAA and lighting details are on file?
The registration cites FAA aeronautical study 2011-AWP-3937-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 1048351?
Its registered overall height above ground is 9 m (30 ft), and 233 m (766 ft) above mean sea level.
Who owns tower 1048351?
The registered owner is T-Mobile West LLC, which holds 1,634 FCC antenna structure registrations.
Where is antenna structure 1048351?
It is located near Hillsborough, San Mateo County, California at 553 DARRELL ROAD (37.55186, -122.37569). Its status is dismantled; it was constructed on Jul 8, 1996.
What type of structure is 1048351?
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. 24,665 registrations nationwide use the same code.
How many antenna structures are registered in San Mateo County, CA?
San Mateo County has 330 FCC-registered antenna structures, 153 of them constructed — the 11th-largest count among 58 counties in California.
Related pages
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Dataset updated . Source: FCC Antenna Structure Registration 1048351, weekly bulk file.
About this data
Source: FCC Antenna Structure Registration (ASR) database, as published October 20, 2026 — TowerCensus refreshes it weekly. See the methodology for how records are matched, cleaned and scored.
Cite as: TowerCensus, “Antenna structure 1048351, Hillsborough, San Mateo County, California”, https://towercensus.com/towers/california/hillsborough-1048351 (data as of October 20, 2026).