Cell towers in Islip, New York
The FCC register lists 7 antenna structures in and around Islip. That is the 69th highest count of any place in New York.
Overview
Islip, NY has 7 registered antenna structures on the FCC register — the 69th largest count among the 811 places in New York that have any.
Area density is 1.47 per square mile — usually the more telling figure for infrastructure that follows terrain, roads and line of sight rather than population.
The median registered structure here stands 93 m (304 ft); the tallest reaches 152 m (500 ft).
American Towers LLC holds more registrations here than any other entity, at 2 of 7.
The earliest structure still on the register here dates from 1969.
Structure types
| Tower | 4 | 57% |
| Lattice tower | 2 | 29% |
| Guyed tower | 1 | 14% |
Largest registered owners
owner is not the same as carrier| American Towers LLC Tower company | 2 | 29% |
| N B T Y INC Other | 1 | 14% |
| Gtc Uno, LLC Other | 1 | 14% |
| Stratcap Wireless Group Other | 1 | 14% |
| T-mobile Northeast LLC Carrier | 1 | 14% |
Tallest registered structures
| Height | Type | Built | Owner | ASR |
|---|---|---|---|---|
| 152 m (500 ft) | Lattice tower | 2000 | American Towers LLC | 2617228 |
| 100 m (327 ft) | Lattice tower | 1998 | Cti Towers Assets II, LLC | 617296 |
| 99 m (324 ft) | Guyed tower | 1969 | American Towers LLC | 111875 |
| 93 m (304 ft) | Tower | 2004 | Stratcap Wireless Group | 111558 |
| 65 m (213 ft) | Tower | 1970 | Gtc Uno, LLC | 623187 |
| 46 m (150 ft) | Tower | 1998 | N B T Y INC | 623970 |
| 19 m (62 ft) | Tower | 2009 | T-mobile Northeast LLC | 2671689 |
When they were registered
| 1960s | 1 | 14% |
| 1970s | 1 | 14% |
| 1990s | 2 | 29% |
| 2000s | 3 | 43% |
Nearby places
- Deer Park 6
- West Babylon 6
- Smithtown 5
- Holbrook 9
- Melville 5
About this data
Counts here are computed from the FCC's registered structure file, dated 2026-08-23. If a mast near you is missing, the usual reason is that it sits below the 200-foot registration threshold.
The FCC Antenna Structure Registration database covers structures that require registration — generally those over 200 feet or near airports. Many small cells, rooftop antennas and short towers are not registered and will not appear here.
"Owner" is the entity that registered the structure, usually a tower company such as American Tower or Crown Castle. It does not indicate which carriers operate equipment on the structure.