Tower 1240683 — Mason City, IL
ConstructedFCC Antenna Structure Registration 1240683 — tower (type not specified) near Mason City, Illinois. 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 1240683 is a 49 m (160 ft) tower near Mason City, Mason County, Illinois. Its registration status is constructed, with construction recorded on Jul 19, 2004. It is registered to Illinois, State of, which holds 100 FCC structure registrations.
Registration record
FCC record
| Field | Value |
|---|---|
| Registration number (ASRN) | 1240683 |
| Unique system identifier | 2639469 |
| Status | Constructed (C) |
| Structure type | Tower (type not specified) (TOWER) |
| Date constructed | Jul 19, 2004 |
| Registration issued | Oct 14, 2003 |
Aviation safety
FAA & lighting
| Field | Value |
|---|---|
| FAA study number | 2003-AGL-4767-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
Springfield, IL · FRN 0002787893
Holds 100 FCC structure registrations — view the full portfolio →
Location
- Address
- Jct IL Rt 10 & IL Rt 29
- City
- Mason City
- State
- Illinois
- ZIP
- 62664
- County
- Mason County
- County FIPS
- 17125
- Coordinates
- 40.20336, -89.71675
Within ~40 km
Nearby structures
Tower (type not specified) · Constructed
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Tower (type not specified) · Constructed
Guyed tower · Constructed
Guyed tower · Constructed
Unspecified structure · Constructed
How tall is structure 1240683 compared with others?
At 49 m, structure 1240683 is about 35% below the 75 m average across the 26 structures registered in Mason County. It is about 29% below the Illinois average of 69 m across 7,110 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 about 36% below that figure.
The supporting structure itself measures 43 m; antennas and other appurtenances on top bring the overall height above ground to 49 m. The site's filed ground elevation is 174 m, which puts the top of the structure 222 m above mean sea level.
Where is structure 1240683, and what is registered around it?
The registration places the structure near Mason City in Mason County, Illinois, at coordinates 40.20336, -89.71675, with the site address filed as "Jct IL Rt 10 & IL Rt 29". Mason County has 26 FCC-registered antenna structures, the 81st-largest count among the 102 Illinois counties with registrations, and 25 of them are marked constructed. Illinois as a whole has 7,110 registrations, the 6th-largest total among the 50 states and DC.
The tallest other registered structure within about 40 km is Mechanicsburg, IL · 1008823, a tower at 445 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 1240683 on Oct 14, 2003. Nationally, 141,895 of the 197,770 registrations (71.7%) carry the constructed status, including 5,177 in Illinois.
Who owns antenna structure 1240683?
The FCC record lists Illinois, State of of Springfield, IL as the registered owner, under FCC Registration Number 0002787893. Across the registry it holds 100 structure registrations, the 193rd-largest portfolio among the 7,865 owners with two or more, including 100 in Illinois. Its most common filed structure-type code is TOWER (96 registrations).
What FAA and lighting details are on file?
The registration cites FAA aeronautical study 2003-AGL-4767-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 1240683?
Its registered overall height above ground is 49 m (160 ft), and 222 m (730 ft) above mean sea level.
Who owns tower 1240683?
The registered owner is Illinois, State of, which holds 100 FCC antenna structure registrations.
Where is antenna structure 1240683?
It is located near Mason City, Mason County, Illinois at Jct IL Rt 10 & IL Rt 29 (40.20336, -89.71675). Its status is constructed; it was constructed on Jul 19, 2004.
What type of structure is 1240683?
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 Mason County, IL?
Mason County has 26 FCC-registered antenna structures, 25 of them constructed — the 81st-largest count among 102 counties in Illinois.
Related pages
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Dataset updated . Source: FCC Antenna Structure Registration 1240683, 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 1240683, Mason City, Mason County, Illinois”, https://towercensus.com/towers/illinois/mason-city-1240683 (data as of October 13, 2026).