Long Island MacArthur Airport frequencies
Long Island MacArthur Airport (ISP · KISP) in Islip, NY is a towered field, staffed 0600-2400. Every frequency below is in the order you tune it, from the first call to the handoff on climb out. · Open on the map
All of Long Island MacArthur Airport — runways, frequencies, charts and live weatherWhen the KISP tower is closed
The tower is staffed 0600-2400. Outside those hours Long Island MacArthur Airport has no operating control tower: it becomes a self announce field on 119.3, and separation from other traffic is yours, not a controller's. Report your position and intentions on entry and on each leg of the pattern.
Runway lighting is often pilot controlled once the tower closes — check the KISP airport page for the click sequence, and what to say on the radio.
Before taxi Long Island
- ATIS 120.725
- A recorded loop of the field's weather, active runway and any notices, updated hourly or whenever conditions change. Listen before your first call, and tell the controller which letter you have so they do not read it to you again.
- ASOS/AWOS 120.725
- An automated weather station reading the field conditions aloud — wind, visibility, ceiling, temperature and altimeter. It replaces ATIS at a field with no controller to record one. Get the altimeter setting before you descend below the transition altitude.
- Clearance 121.85
- Clearance delivery issues your IFR clearance, and at busier fields your VFR departure instructions and squawk code. Call before you request taxi, with the ATIS letter and your intended direction of flight.
Taxi & takeoff Long Island
- Ground 135.3
- Ground control owns every taxiway and inactive runway on the field. Call for taxi with your position and destination on the field. You need an explicit clearance to cross any runway, including one that is not in use.
- Tower 119.3 (primary), 124.3 (secondary)
- Tower owns the active runways and the surrounding surface area. Call before entering the surface area inbound, and hold short until you are cleared to take off or to cross.
Departure & arrival New York
- App/Dep 120.05 (NELIE arrivals)
- One radar controller working both arrivals and departures — normal at a smaller TRACON. The same frequency takes your climb out and your inbound call.
Also
- CTAF 119.3
- The common frequency pilots use to announce themselves to each other at a field with no operating control tower. Nobody is controlling traffic — you are self announcing. Report your position and intentions on entry and on each leg of the pattern, and listen well before you transmit.
- UNICOM 122.95
- A ground station run by the FBO rather than the FAA, for fuel, parking and airport services. Use it for services. Where the field has no separate CTAF, the same frequency doubles as the advisory frequency.
- Emergency 121.5
- 121.5 is the international emergency and distress frequency, monitored continuously. Declare on it if you are in trouble, and monitor it as a second radio when you have one free.
By procedure & sector (37 more)
| 45.0 | ARNG OPS |
|---|---|
| 120.05 | CLASS C, CLASS C (180-329), CLASS C (330-179), NELIE STAR |
| 239.3 | LCL/S |
| 243.0 | EMERG |
| 335.5 | LCL/P |
| 343.75 | APCH/P DEP/P IC, CLASS C, NELIE STAR |
| 2887 CARIBBEAN FAMILY A | ISP RADIO |
| 3016 NORTH ATLANTIC FAMILY A | ISP RADIO |
| 3455 CARIBBEAN FAMILY B | ISP RADIO |
| 3494 LONG DISTANCE OPS CTL FAC | ISP RADIO |
| 5520 CARIBBEAN FAMILY B | ISP RADIO |
| 5550 CARIBBEAN FAMILY A | ISP RADIO |
| 5598 NORTH ATLANTIC FAMILY A | ISP RADIO |
| 6577 CARIBBEAN FAMILY A | ISP RADIO |
| 6586 CARIBBEAN FAMILY B | ISP RADIO |
| 6628 NORTH ATLANTIC FAMILY E | ISP RADIO |
| 6640 LONG DISTANCE OPS CTL FAC | ISP RADIO |
| 8825 NORTH ATLANTIC FAMILY E | ISP RADIO |
| 8846 CARIBBEAN FAMILY A | ISP RADIO |
| 8846 CARIBBEAN FAMILY B | ISP RADIO |
| 8906 NORTH ATLANTIC FAMILY A | ISP RADIO |
| 8918 CARIBBEAN FAMILY A | ISP RADIO |
| 11309 NORTH ATLANTIC FAMILY E | ISP RADIO |
| 11342 LONG DISTANCE OPS CTL FAC | ISP RADIO |
| 11387 CARIBBEAN FAMILY B | ISP RADIO |
| 11396 CARIBBEAN FAMILY A | ISP RADIO |
| 13297 CARIBBEAN FAMILY A | ISP RADIO |
| 13306 NORTH ATLANTIC FAMILY A | ISP RADIO |
| 13330 LONG DISTANCE OPS CTL FAC | ISP RADIO |
| 13354 NORTH ATLANTIC FAMILY E | ISP RADIO |
| 17907 CARIBBEAN FAMILY A | ISP RADIO |
| 17907 CARIBBEAN FAMILY B | ISP RADIO |
| 17925 LONG DISTANCE OPS CTL FAC | ISP RADIO |
| 17946 NORTH ATLANTIC FAMILY A | ISP RADIO |
| 17946 NORTH ATLANTIC FAMILY B | ISP RADIO |
| 17964 NORTH ATLANTIC FAMILY E | ISP RADIO |
| 21964 LONG DISTANCE OPS CTL FAC | ISP RADIO |
Every KISP frequency, as one table
| ATIS | 120.725 |
|---|---|
| ASOS/AWOS | 120.725 |
| Clearance | 121.85 |
| Ground | 135.3 |
| Tower | 119.3 (primary), 124.3 (secondary) |
| CTAF | 119.3 |
| UNICOM | 122.95 |
| Emergency | 121.5 |
| App/Dep | 120.05 · NELIE arrivals |
Frequently asked
What is the tower frequency at KISP?
Long Island MacArthur Airport tower is 119.3 (primary), 124.3 (secondary), calling "Long Island Tower". The tower is staffed 0600-2400.
What frequency do I use at KISP when the tower is closed?
Outside 0600-2400, Long Island MacArthur Airport has no operating control tower and becomes a self announce field. Use 119.3 as the CTAF and report your position and intentions — there is nobody to clear you, so separation is yours.
What is the ground frequency at KISP?
Ground control at Long Island MacArthur Airport is 135.3. You need an explicit clearance from ground to cross any runway while taxiing, including one that is not in use.
What is the ATIS frequency at KISP?
ATIS at Long Island MacArthur Airport is 120.725. Listen before your first call and report the letter you have.
What is the approach frequency for KISP?
App/Dep for Long Island MacArthur Airport is 120.05, working as "New York" (NELIE arrivals). Call inbound for flight following or to begin an instrument approach.
Where do I get my clearance at KISP?
Clearance delivery at Long Island MacArthur Airport is 121.85. Call before requesting taxi, with the current ATIS letter and your direction of flight.
More about KISP
Frequencies from FAA NASR. For planning and education only; always verify against official sources.