Tower 1003551 — Middletown, MD
ConstructedFCC Antenna Structure Registration 1003551 — tower (type not specified) near Middletown, Maryland. Filed under the FCC's older general tower code, which does not record whether the tower is guyed, lattice or a monopole.
At a glance
FCC Antenna Structure Registration 1003551 is a 77 m (254 ft) tower near Middletown, Frederick County, Maryland. Its registration status is constructed, with construction recorded on Nov 18, 1997. It is registered to STC Three LLC, which holds 62 FCC structure registrations.
Registration record
FCC record
| Field | Value |
|---|---|
| Registration number (ASRN) | 1003551 |
| Unique system identifier | 109331 |
| Status | Constructed (C) |
| Structure type | Tower (type not specified) (TOWER) |
| Date constructed | Nov 18, 1997 |
| Registration issued | Jan 22, 2026 |
Aviation safety
FAA & lighting
| Field | Value |
|---|---|
| FAA study number | 2005-AEA-157-OE |
| FAA circular | 70/7460-1J |
| Painting / lighting spec | 4, 8, 13 |
| Marking / lighting code | FAA Style E (7) |
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 0013810171
Holds 62 FCC structure registrations — view the full portfolio →
Location
- Address
- 9120 HARMONY RD
- City
- Middletown
- State
- Maryland
- ZIP
- 21769
- County
- Frederick County
- County FIPS
- 24021
- Coordinates
- 39.48383, -77.53886
Within ~40 km
Nearby structures
Tower (type not specified) · Constructed
Lattice tower · Constructed
Tower (type not specified) · Constructed
Antenna tower array (tower 4 of 4) · Dismantled
- Urbana, MD · 1036748137 m
Guyed tower · Constructed
Tower (type not specified) · Constructed
How tall is structure 1003551 compared with others?
At 77 m, structure 1003551 is about 35% above the 57 m average across the 120 structures registered in Frederick County. It is about 11% above the Maryland average of 70 m across 1,911 registrations. Among the 75,247 registrations nationwide filed under the same structure-type code (TOWER), the average overall height is 76 m, so this one is roughly in line with that figure.
The supporting structure itself measures 76 m; antennas and other appurtenances on top bring the overall height above ground to 77 m. The site's filed ground elevation is 208 m, which puts the top of the structure 286 m above mean sea level.
Where is structure 1003551, and what is registered around it?
The registration places the structure near Middletown in Frederick County, Maryland, at coordinates 39.48383, -77.53886, with the site address filed as "9120 HARMONY RD". Frederick County has 120 FCC-registered antenna structures, the 5th-largest count among the 24 Maryland counties with registrations, and 73 of them are marked constructed. Maryland as a whole has 1,911 registrations, the 33rd-largest total among the 50 states and DC.
The tallest other registered structure within about 40 km is Dickerson, MD · 1047819, a tower at 214 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 1003551 on Jan 22, 2026. Nationally, 141,895 of the 197,770 registrations (71.7%) carry the constructed status, including 1,312 in Maryland.
Who owns antenna structure 1003551?
The FCC record lists STC Three LLC of Bellevue, WA as the registered owner, under FCC Registration Number 0013810171. Across the registry it holds 62 structure registrations, the 300th-largest portfolio among the 7,865 owners with two or more, including 44 in Maryland. Its most common filed structure-type code is TOWER (30 registrations).
What FAA and lighting details are on file?
The registration cites FAA aeronautical study 2005-AEA-157-OE and FAA Advisory Circular 70/7460-1J, the FAA review of the structure's effect on air navigation. Its marking and lighting code, 7, is listed on the FCC registration form as "FAA Style E". The painting and lighting specification on file cites FAA chapters 4, 8, 13.
Frequently asked questions
How tall is antenna structure 1003551?
Its registered overall height above ground is 77 m (254 ft), and 286 m (937 ft) above mean sea level.
Who owns tower 1003551?
The registered owner is STC Three LLC, which holds 62 FCC antenna structure registrations.
Where is antenna structure 1003551?
It is located near Middletown, Frederick County, Maryland at 9120 HARMONY RD (39.48383, -77.53886). Its status is constructed; it was constructed on Nov 18, 1997.
What type of structure is 1003551?
It is filed with the FCC under structure-type code TOWER, which decodes to "Tower (type not specified)". Filed under the FCC's older general tower code, which does not record whether the tower is guyed, lattice or a monopole. 75,247 registrations nationwide use the same code.
How many antenna structures are registered in Frederick County, MD?
Frederick County has 120 FCC-registered antenna structures, 73 of them constructed — the 5th-largest count among 24 counties in Maryland.
Related pages
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Dataset updated . Source: FCC Antenna Structure Registration 1003551, 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 1003551, Middletown, Frederick County, Maryland”, https://towercensus.com/towers/maryland/middletown-1003551 (data as of October 13, 2026).