Structure 1221357 — St Helena Island, SC
DismantledFCC Antenna Structure Registration 1221357 — unspecified structure near St Helena Island, South Carolina.
At a glance
FCC Antenna Structure Registration 1221357 is a 49 m (161 ft) structure near St Helena Island, Beaufort County, South Carolina. Its registration status is dismantled, with construction recorded on Dec 31, 1999, and the FCC record shows it dismantled on May 14, 2019. It is registered to American Towers LLC, which holds 21,809 FCC structure registrations.
Registration record
FCC record
| Field | Value |
|---|---|
| Registration number (ASRN) | 1221357 |
| Unique system identifier | 2619100 |
| Status | Dismantled (I) |
| Structure type | Unspecified structure (—) |
| Date constructed | Dec 31, 1999 |
| Registration issued | May 20, 2019 |
| Date dismantled | May 14, 2019 |
Aviation safety
FAA & lighting
| Field | Value |
|---|---|
| FAA study number | 2004-ASO-6780-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
- 651 Sea Island Pkwy (21668 / Hwy 21)
- City
- St Helena Island
- State
- South Carolina
- ZIP
- 29920
- County
- Beaufort County
- County FIPS
- 45013
- Coordinates
- 32.40108, -80.59872
Within ~40 km
Nearby structures
Tower (type not specified) · Terminated
Guyed tower · Constructed
Guyed tower · Constructed
Guyed tower · Constructed
Guyed tower · Constructed
Unspecified structure · Dismantled
How tall is structure 1221357 compared with others?
At 49 m, structure 1221357 is about 28% below the 68 m average across the 105 structures registered in Beaufort County. It is about 40% below the South Carolina average of 81 m across 4,407 registrations.
The supporting structure itself measures 47 m; antennas and other appurtenances on top bring the overall height above ground to 49 m. The site's filed ground elevation is 3 m, which puts the top of the structure 52 m above mean sea level.
Where is structure 1221357, and what is registered around it?
The registration places the structure near St Helena Island in Beaufort County, South Carolina, at coordinates 32.40108, -80.59872, with the site address filed as "651 Sea Island Pkwy (21668 / Hwy 21)". Beaufort County has 105 FCC-registered antenna structures, the 14th-largest count among the 46 South Carolina counties with registrations, and 65 of them are marked constructed. South Carolina as a whole has 4,407 registrations, the 18th-largest total among the 50 states and DC.
The tallest other registered structure within about 40 km is Green Pond, SC · 1065071, a tower at 402 m (terminated).
What does the status "Dismantled" mean?
Dismantled means the owner has notified the FCC that the structure was taken down. The FCC issued registration 1221357 on May 20, 2019. Nationally, 12,705 of the 197,833 registrations (6.4%) carry the dismantled status, including 199 in South Carolina.
Who owns antenna structure 1221357?
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. Its most common filed structure-type code is LTOWER (5,892 registrations).
What FAA and lighting details are on file?
The registration cites FAA aeronautical study 2004-ASO-6780-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 1221357?
Its registered overall height above ground is 49 m (161 ft), and 52 m (171 ft) above mean sea level.
Who owns tower 1221357?
The registered owner is American Towers LLC, which holds 21,809 FCC antenna structure registrations.
Where is antenna structure 1221357?
It is located near St Helena Island, Beaufort County, South Carolina at 651 Sea Island Pkwy (21668 / Hwy 21) (32.40108, -80.59872). Its status is dismantled; it was constructed on Dec 31, 1999.
What type of structure is 1221357?
The FCC record does not state a structure type for this registration.
How many antenna structures are registered in Beaufort County, SC?
Beaufort County has 105 FCC-registered antenna structures, 65 of them constructed — the 14th-largest count among 46 counties in South Carolina.
Related pages
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Dataset updated . Source: FCC Antenna Structure Registration 1221357, 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 1221357, St Helena Island, Beaufort County, South Carolina”, https://towercensus.com/towers/south-carolina/st-helena-island-1221357 (data as of October 20, 2026).