Tower 1225864 — Chicago, IL
ConstructedFCC Antenna Structure Registration 1225864 — tower (type not specified) near Chicago, 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 1225864 is a 38 m (125 ft) tower near Chicago, Cook County, Illinois. Its registration status is constructed, with construction recorded on Sep 13, 2004. It is registered to T-Mobile USA Tower LLC, which holds 1,344 FCC structure registrations.
Registration record
FCC record
| Field | Value |
|---|---|
| Registration number (ASRN) | 1225864 |
| Unique system identifier | 2623671 |
| Status | Constructed (C) |
| Structure type | Tower (type not specified) (TOWER) |
| Date constructed | Sep 13, 2004 |
| Registration issued | Jan 23, 2026 |
Aviation safety
FAA & lighting
| Field | Value |
|---|---|
| FAA study number | 01-AGL-2239-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 0022193270
Holds 1,344 FCC structure registrations — view the full portfolio →
Location
- Address
- 3124 W. 36th St.
- City
- Chicago
- State
- Illinois
- ZIP
- 60632
- County
- Cook County
- County FIPS
- 17031
- Coordinates
- 41.82878, -87.70381
Within ~40 km
Nearby structures
Building with tower · Constructed
Building with mast · Constructed
Building with tower · Constructed
Building with tower · Constructed
Building with tower · Granted (not yet constructed)
Building with mast · Constructed
How tall is structure 1225864 compared with others?
At 38 m, structure 1225864 is about 21% below the 48 m average across the 965 structures registered in Cook County. It is about 45% 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 half of that figure.
The site's filed ground elevation is 183 m, which puts the top of the structure 221 m above mean sea level.
Where is structure 1225864, and what is registered around it?
The registration places the structure near Chicago in Cook County, Illinois, at coordinates 41.82878, -87.70381, with the site address filed as "3124 W. 36th St.". Cook County has 965 FCC-registered antenna structures, the largest count among the 102 Illinois counties with registrations, and 641 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 Chicago, IL · 1032959, a building tower at 527 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 1225864 on Jan 23, 2026. Nationally, 141,895 of the 197,770 registrations (71.7%) carry the constructed status, including 5,177 in Illinois.
Who owns antenna structure 1225864?
The FCC record lists T-Mobile USA Tower LLC of Bellevue, WA as the registered owner, under FCC Registration Number 0022193270. Across the registry it holds 1,344 structure registrations, the 22nd-largest portfolio among the 7,865 owners with two or more, including 154 in Illinois. Its most common filed structure-type code is TOWER (668 registrations).
What FAA and lighting details are on file?
The registration cites FAA aeronautical study 01-AGL-2239-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 1225864?
Its registered overall height above ground is 38 m (125 ft), and 221 m (724 ft) above mean sea level.
Who owns tower 1225864?
The registered owner is T-Mobile USA Tower LLC, which holds 1,344 FCC antenna structure registrations.
Where is antenna structure 1225864?
It is located near Chicago, Cook County, Illinois at 3124 W. 36th St. (41.82878, -87.70381). Its status is constructed; it was constructed on Sep 13, 2004.
What type of structure is 1225864?
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 Cook County, IL?
Cook County has 965 FCC-registered antenna structures, 641 of them constructed — the largest count among 102 counties in Illinois.
Related pages
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Dataset updated . Source: FCC Antenna Structure Registration 1225864, 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 1225864, Chicago, Cook County, Illinois”, https://towercensus.com/towers/illinois/chicago-1225864 (data as of October 13, 2026).