Mast 1212458 — North Chicago, IL
DismantledFCC Antenna Structure Registration 1212458 — mast near North Chicago, Illinois. Slender vertical mast structure.
At a glance
FCC Antenna Structure Registration 1212458 is a 42 m (136 ft) mast near North Chicago, Lake County, Illinois. Its registration status is dismantled, with construction recorded on Mar 25, 2002, and the FCC record shows it dismantled on Feb 1, 2024. It is registered to American Towers LLC, which holds 21,809 FCC structure registrations.
Registration record
FCC record
| Field | Value |
|---|---|
| Registration number (ASRN) | 1212458 |
| Unique system identifier | 2609612 |
| Status | Dismantled (I) |
| Structure type | Mast (MAST) |
| Date constructed | Mar 25, 2002 |
| Registration issued | Feb 14, 2024 |
| Date dismantled | Feb 1, 2024 |
Aviation safety
FAA & lighting
| Field | Value |
|---|---|
| FAA study number | 2006-AGL-507-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
Woburn, MA · FRN 0011498342
Holds 21,809 FCC structure registrations — view the full portfolio →
Location
- Address
- 2323 Commonwealth Ave. (Rte 137 & Sheridan Rd-#050493)
- City
- North Chicago
- State
- Illinois
- ZIP
- 60064
- County
- Lake County
- County FIPS
- 17097
- Coordinates
- 42.31594, -87.84564
Within ~40 km
Nearby structures
Tower (type not specified) · Constructed
Structure type 2TOWER · Constructed
- Itasca, IL · 1013846212 m
Unspecified structure · Dismantled
Lattice tower · Constructed
Structure type 2TOWER · Constructed
Guyed tower · Constructed
How tall is structure 1212458 compared with others?
At 42 m, structure 1212458 is about 22% below the 53 m average across the 258 structures registered in Lake County. It is about 40% below 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 22% below that figure.
The supporting structure itself measures 39 m; antennas and other appurtenances on top bring the overall height above ground to 42 m. The site's filed ground elevation is 196 m, which puts the top of the structure 237 m above mean sea level.
Where is structure 1212458, and what is registered around it?
The registration places the structure near North Chicago in Lake County, Illinois, at coordinates 42.31594, -87.84564, with the site address filed as "2323 Commonwealth Ave. (Rte 137 & Sheridan Rd-#050493)". Lake County has 258 FCC-registered antenna structures, the 3rd-largest count among the 102 Illinois counties with registrations, and 171 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 Elk Grove Village, IL · 1007548, a tower at 229 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 1212458 on Feb 14, 2024. Nationally, 12,669 of the 197,770 registrations (6.4%) carry the dismantled status, including 614 in Illinois.
Who owns antenna structure 1212458?
The FCC record lists American Towers LLC of Woburn, MA as the registered owner, under FCC Registration Number 0011498342. Across the registry it holds 21,809 structure registrations, the largest portfolio among the 7,865 owners with two or more, including 881 in Illinois. Its most common filed structure-type code is LTOWER (5,885 registrations).
What FAA and lighting details are on file?
The registration cites FAA aeronautical study 2006-AGL-507-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 1212458?
Its registered overall height above ground is 42 m (136 ft), and 237 m (778 ft) above mean sea level.
Who owns tower 1212458?
The registered owner is American Towers LLC, which holds 21,809 FCC antenna structure registrations.
Where is antenna structure 1212458?
It is located near North Chicago, Lake County, Illinois at 2323 Commonwealth Ave. (Rte 137 & Sheridan Rd-#050493) (42.31594, -87.84564). Its status is dismantled; it was constructed on Mar 25, 2002.
What type of structure is 1212458?
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 Lake County, IL?
Lake County has 258 FCC-registered antenna structures, 171 of them constructed — the 3rd-largest count among 102 counties in Illinois.
Related pages
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Dataset updated . Source: FCC Antenna Structure Registration 1212458, 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 1212458, North Chicago, Lake County, Illinois”, https://towercensus.com/towers/illinois/north-chicago-1212458 (data as of October 13, 2026).