Monopole 1213731 — Hazelwood, MO
ConstructedFCC Antenna Structure Registration 1213731 — monopole near Hazelwood, Missouri. Single-shaft steel pole, the standard modern cell-site structure.
At a glance
FCC Antenna Structure Registration 1213731 is a 38 m (125 ft) monopole near Hazelwood, St. Louis County, Missouri. Its registration status is constructed, with construction recorded on Nov 25, 2000. 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) | 1213731 |
| Unique system identifier | 2611126 |
| Status | Constructed (C) |
| Structure type | Monopole (MTOWER) |
| Date constructed | Nov 25, 2000 |
| Registration issued | Jan 23, 2026 |
Aviation safety
FAA & lighting
| Field | Value |
|---|---|
| FAA study number | 2013-ACE-1651-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
- 6121 Dunn Road
- City
- Hazelwood
- State
- Missouri
- ZIP
- 63042
- County
- St. Louis County
- County FIPS
- 29189
- Coordinates
- 38.78228, -90.38031
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 1213731 compared with others?
At 38 m, structure 1213731 is about 21% below the 49 m average across the 447 structures registered in St. Louis County. It is about half of the Missouri average of 77 m across 6,026 registrations. Among the 24,638 registrations nationwide filed under the same structure-type code (MTOWER), the average overall height is 42 m, so this one is roughly in line with that figure.
The supporting structure itself measures 37 m; antennas and other appurtenances on top bring the overall height above ground to 38 m. The site's filed ground elevation is 178 m, which puts the top of the structure 216 m above mean sea level.
Where is structure 1213731, and what is registered around it?
The registration places the structure near Hazelwood in St. Louis County, Missouri, at coordinates 38.78228, -90.38031, with the site address filed as "6121 Dunn Road". St. Louis County has 447 FCC-registered antenna structures, the largest count among the 115 Missouri counties with registrations, and 286 of them are marked constructed. Missouri as a whole has 6,026 registrations, the 10th-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 1213731 on Jan 23, 2026. Nationally, 141,895 of the 197,770 registrations (71.7%) carry the constructed status, including 4,532 in Missouri.
Who owns antenna structure 1213731?
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 66 in Missouri. 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 2013-ACE-1651-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 1213731?
Its registered overall height above ground is 38 m (125 ft), and 216 m (708 ft) above mean sea level.
Who owns tower 1213731?
The registered owner is T-Mobile USA Tower LLC, which holds 1,344 FCC antenna structure registrations.
Where is antenna structure 1213731?
It is located near Hazelwood, St. Louis County, Missouri at 6121 Dunn Road (38.78228, -90.38031). Its status is constructed; it was constructed on Nov 25, 2000.
What type of structure is 1213731?
It is filed with the FCC under structure-type code MTOWER, which decodes to "Monopole". Single-shaft steel pole, the standard modern cell-site structure. 24,638 registrations nationwide use the same code.
How many antenna structures are registered in St. Louis County, MO?
St. Louis County has 447 FCC-registered antenna structures, 286 of them constructed — the largest count among 115 counties in Missouri.
Related pages
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Dataset updated . Source: FCC Antenna Structure Registration 1213731, 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 1213731, Hazelwood, St. Louis County, Missouri”, https://towercensus.com/towers/missouri/hazelwood-1213731 (data as of October 13, 2026).