Mast 1242088 — East Alton, IL
ConstructedFCC Antenna Structure Registration 1242088 — mast near East Alton, Illinois. Slender vertical mast structure.
At a glance
FCC Antenna Structure Registration 1242088 is a 11 m (35 ft) mast near East Alton, Madison County, Illinois. Its registration status is constructed, with construction recorded on Feb 17, 2005. It is registered to St. Louis Regional Airport Authority.
Registration record
FCC record
| Field | Value |
|---|---|
| Registration number (ASRN) | 1242088 |
| Unique system identifier | 2641043 |
| Status | Constructed (C) |
| Structure type | Mast (MAST) |
| Date constructed | Feb 17, 2005 |
| Registration issued | Feb 11, 2004 |
Aviation safety
FAA & lighting
| Field | Value |
|---|---|
| FAA study number | 01-AGL-124-NS |
| 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
St. Louis Regional Airport Authority
East Alton, IL · FRN 0010367548
Location
- Address
- St. Louis Regional Airport
- City
- East Alton
- State
- Illinois
- ZIP
- 62010
- County
- Madison County
- County FIPS
- 17119
- Coordinates
- 38.88967, -90.03164
Within ~40 km
Nearby structures
Tower (type not specified) · Canceled
Tower (type not specified) · Constructed
Tower (type not specified) · Constructed
Tower (type not specified) · Terminated
Guyed tower · Constructed
Guyed tower · Granted (not yet constructed)
How tall is structure 1242088 compared with others?
At 11 m, structure 1242088 is about 15% of the 69 m average across the 185 structures registered in Madison County. It is about 15% of the Illinois average of 69 m across 7,110 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 supporting structure itself measures 9 m; antennas and other appurtenances on top bring the overall height above ground to 11 m. The site's filed ground elevation is 160 m, which puts the top of the structure 171 m above mean sea level.
Where is structure 1242088, and what is registered around it?
The registration places the structure near East Alton in Madison County, Illinois, at coordinates 38.88967, -90.03164, with the site address filed as "St. Louis Regional Airport". Madison County has 185 FCC-registered antenna structures, the 7th-largest count among the 102 Illinois counties with registrations, and 122 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 St. Louis, MO · 1261728, a tower at 369 m (canceled).
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 1242088 on Feb 11, 2004. Nationally, 141,895 of the 197,770 registrations (71.7%) carry the constructed status, including 5,177 in Illinois.
Who owns antenna structure 1242088?
The FCC record lists St. Louis Regional Airport Authority of East Alton, IL as the registered owner, under FCC Registration Number 0010367548.
What FAA and lighting details are on file?
The registration cites FAA aeronautical study 01-AGL-124-NS, 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 1242088?
Its registered overall height above ground is 11 m (35 ft), and 171 m (560 ft) above mean sea level.
Who owns tower 1242088?
The registered owner is St. Louis Regional Airport Authority.
Where is antenna structure 1242088?
It is located near East Alton, Madison County, Illinois at St. Louis Regional Airport (38.88967, -90.03164). Its status is constructed; it was constructed on Feb 17, 2005.
What type of structure is 1242088?
It is filed with the FCC under structure-type code MAST, which decodes to "Mast". Slender vertical mast structure. 3,482 registrations nationwide use the same code.
How many antenna structures are registered in Madison County, IL?
Madison County has 185 FCC-registered antenna structures, 122 of them constructed — the 7th-largest count among 102 counties in Illinois.
Related pages
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Dataset updated . Source: FCC Antenna Structure Registration 1242088, 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 1242088, East Alton, Madison County, Illinois”, https://towercensus.com/towers/illinois/east-alton-1242088 (data as of October 20, 2026).