Structure 1022257 — Portsmouth, NH
DismantledFCC Antenna Structure Registration 1022257 — unspecified structure near Portsmouth, New Hampshire.
At a glance
FCC Antenna Structure Registration 1022257 is a 56 m (183 ft) structure near Portsmouth, Rockingham County, New Hampshire. Its registration status is dismantled, with construction recorded on Jan 1, 1992, and the FCC record shows it dismantled on Mar 30, 2016. It is registered to Borthwick Forrest LLC., which holds 2 FCC structure registrations.
Registration record
FCC record
| Field | Value |
|---|---|
| Registration number (ASRN) | 1022257 |
| Unique system identifier | 123926 |
| Status | Dismantled (I) |
| Structure type | Unspecified structure (—) |
| Date constructed | Jan 1, 1992 |
| Registration issued | Apr 4, 2016 |
| Date dismantled | Mar 30, 2016 |
Aviation safety
FAA & lighting
| Field | Value |
|---|---|
| FAA study number | — |
| FAA circular | — |
| Painting / lighting spec | 1, 3, 11, 21 |
| Marking / lighting code | FAA Style A (9) |
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
Portsmouth, NH · FRN 0025147539
Holds 2 FCC structure registrations — view the full portfolio →
Location
- Address
- TWR 11555 ISLINGTON ST
- City
- Portsmouth
- State
- New Hampshire
- ZIP
- 03801
- County
- Rockingham County
- County FIPS
- 33015
- Coordinates
- 43.06361, -70.78500
Within ~40 km
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How tall is structure 1022257 compared with others?
At 56 m, structure 1022257 is roughly in line with the 60 m average across the 93 structures registered in Rockingham County. It is roughly in line with the New Hampshire average of 53 m across 609 registrations.
The site's filed ground elevation is 15 m, which puts the top of the structure 70 m above mean sea level.
Where is structure 1022257, and what is registered around it?
The registration places the structure near Portsmouth in Rockingham County, New Hampshire, at coordinates 43.06361, -70.78500, with the site address filed as "TWR 11555 ISLINGTON ST". Rockingham County has 93 FCC-registered antenna structures, the 2nd-largest count among the 10 New Hampshire counties with registrations, and 59 of them are marked constructed. New Hampshire as a whole has 609 registrations, the 46th-largest total among the 50 states and DC.
The tallest other registered structure within about 40 km is Haverhill, MA · 1007182, a guyed tower at 183 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 1022257 on Apr 4, 2016. Nationally, 12,705 of the 197,833 registrations (6.4%) carry the dismantled status, including 40 in New Hampshire.
Who owns antenna structure 1022257?
The FCC record lists Borthwick Forrest LLC. of Portsmouth, NH as the registered owner, under FCC Registration Number 0025147539. Across the registry it holds 2 structure registrations, including 2 in New Hampshire.
What FAA and lighting details are on file?
Its marking and lighting code, 9, is listed on the FCC registration form as "FAA Style A". The painting and lighting specification on file cites FAA chapters 1, 3, 11, 21.
Frequently asked questions
How tall is antenna structure 1022257?
Its registered overall height above ground is 56 m (183 ft), and 70 m (230 ft) above mean sea level.
Who owns tower 1022257?
The registered owner is Borthwick Forrest LLC., which holds 2 FCC antenna structure registrations.
Where is antenna structure 1022257?
It is located near Portsmouth, Rockingham County, New Hampshire at TWR 11555 ISLINGTON ST (43.06361, -70.78500). Its status is dismantled; it was constructed on Jan 1, 1992.
What type of structure is 1022257?
The FCC record does not state a structure type for this registration.
How many antenna structures are registered in Rockingham County, NH?
Rockingham County has 93 FCC-registered antenna structures, 59 of them constructed — the 2nd-largest count among 10 counties in New Hampshire.
Related pages
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Dataset updated . Source: FCC Antenna Structure Registration 1022257, 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 1022257, Portsmouth, Rockingham County, New Hampshire”, https://towercensus.com/towers/new-hampshire/portsmouth-1022257 (data as of October 20, 2026).