Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

A72A33

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N56066 · PIPER PA-28R-180/200/201 · operated by TROJAN AVIATION LLC

Hex
A72A33
Octal
51625063
Decimal
10,955,315
Country
US
Tail
N56066
Type
P28R
Transponder active on ground
Flights observed
136
Distinct callsigns
1
Country
US
Last broadcast
3h ago

Last known position

Most recent position reported by Mode-S A72A33.

Country allocation

The ICAO 24-bit address A72A33 falls within the block assigned to United States (US) by ICAO Annex 10, Volume III. Every aircraft registered in United States receives a permanent address from this block at the time of registration; the address stays with the airframe even if the aircraft is re-registered to a different operator within the country.

Callsign history 1 distinct

Callsign Airline Flights Last seen
N56066 - 136 2026-07-09

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-09 N56066 KOA → KOA Jul 9, 23:15 UTCJul 10, 00:40 UTC1h 25m
2026-07-09 N56066 KOA → KOA Jul 9, 18:25 UTCJul 9, 20:40 UTC2h 15m
2026-07-09 N56066 - Jul 9, 06:05 UTCJul 9, 06:25 UTC20m
2026-07-09 N56066 - Jul 9, 04:55 UTCJul 9, 05:15 UTC20m
2026-07-08 N56066 - Jul 8, 23:15 UTCJul 8, 23:30 UTC15m
2026-07-08 N56066 - Jul 8, 20:25 UTCJul 8, 20:40 UTC15m
2026-07-08 N56066 KOA → KOA Jul 8, 19:05 UTCJul 8, 19:20 UTC15m
2026-07-07 N56066 KOA → KOA Jul 7, 18:40 UTCJul 7, 19:50 UTC1h 10m
2026-07-06 N56066 - Jul 6, 22:25 UTCJul 6, 22:35 UTC10m
2026-07-06 N56066 - Jul 6, 21:20 UTCJul 6, 21:35 UTC15m
2026-07-06 N56066 - Jul 6, 02:55 UTCJul 6, 04:30 UTC1h 35m
2026-07-06 N56066 - Jul 6, 00:00 UTCJul 6, 00:20 UTC20m
2026-07-05 N56066 - Jul 5, 22:10 UTCJul 5, 23:30 UTC1h 20m
2026-07-05 N56066 - Jul 5, 19:25 UTCJul 5, 19:35 UTC10m
2026-07-05 N56066 - Jul 5, 18:30 UTCJul 5, 18:40 UTC10m
2026-07-03 N56066 - Jul 3, 19:20 UTCJul 3, 19:25 UTC5m
2026-07-03 N56066 - Jul 3, 18:30 UTCJul 3, 18:40 UTC10m
2026-07-03 N56066 - Jul 3, 05:15 UTCJul 3, 05:30 UTC15m
2026-07-03 N56066 - Jul 3, 04:15 UTCJul 3, 04:30 UTC15m
2026-07-02 N56066 - Jul 2, 04:10 UTCJul 2, 04:20 UTC10m
2026-07-02 N56066 KOA → WKL Jul 2, 02:50 UTCJul 2, 03:00 UTC10m
2026-07-01 N56066 - Jul 1, 19:25 UTCJul 1, 19:30 UTC5m
2026-07-01 N56066 - Jul 1, 18:30 UTCJul 1, 18:40 UTC10m
2026-07-01 N56066 - Jul 1, 03:55 UTCJul 1, 04:15 UTC20m
2026-07-01 N56066 - Jul 1, 02:20 UTCJul 1, 02:35 UTC15m
2026-06-30 N56066 - Jun 30, 22:15 UTCJun 30, 22:25 UTC10m
2026-06-30 N56066 - Jun 30, 21:20 UTCJun 30, 21:40 UTC20m
2026-06-30 N56066 KOA → KOA Jun 30, 21:05 UTCJun 30, 21:10 UTC5m
2026-06-30 N56066 KOA → KOA Jun 30, 04:35 UTCJun 30, 05:30 UTC55m
2026-06-29 N56066 - Jun 29, 20:04 UTCJun 29, 20:30 UTC25m
2026-06-29 N56066 - Jun 29, 18:14 UTCJun 29, 18:34 UTC20m
2026-06-28 N56066 - Jun 28, 23:09 UTCJun 28, 23:20 UTC10m
2026-06-28 N56066 - Jun 28, 22:20 UTCJun 28, 22:29 UTC10m
2026-06-28 N56066 KOA → KOA Jun 28, 01:55 UTCJun 28, 02:54 UTC1h 0m
2026-06-27 N56066 - Jun 27, 01:15 UTCJun 27, 02:39 UTC1h 25m
2026-06-26 N56066 - Jun 26, 22:49 UTCJun 26, 23:09 UTC20m
2026-06-26 N56066 - Jun 26, 19:09 UTCJun 26, 20:34 UTC1h 25m
2026-06-23 N56066 - Jun 23, 23:44 UTCJun 24, 00:05 UTC20m
2026-06-23 N56066 - Jun 23, 23:00 UTCJun 23, 23:10 UTC10m
2026-06-23 N56066 - Jun 23, 19:44 UTCJun 23, 20:10 UTC25m
2026-06-23 N56066 - Jun 23, 18:29 UTCJun 23, 19:04 UTC35m
2026-06-22 N56066 - Jun 22, 20:30 UTCJun 22, 20:39 UTC10m
2026-06-22 N56066 - Jun 22, 18:44 UTCJun 22, 19:00 UTC15m
2026-06-19 N56066 - Jun 19, 23:34 UTCJun 20, 01:19 UTC1h 45m
2026-06-19 N56066 KOA → HNL Jun 19, 18:30 UTCJun 19, 19:49 UTC1h 20m
2026-06-18 N56066 KOA → KOA Jun 18, 21:05 UTCJun 18, 21:10 UTC5m
2026-06-18 N56066 - Jun 18, 20:35 UTCJun 18, 20:55 UTC20m
2026-06-18 N56066 - Jun 18, 18:40 UTCJun 18, 19:05 UTC25m
2026-06-18 N56066 - Jun 18, 01:35 UTCJun 18, 01:45 UTC10m
2026-06-18 N56066 - Jun 18, 00:40 UTCJun 18, 01:00 UTC20m

About Mode-S

A Mode-S transponder code (also called an "ICAO 24-bit address" or "hex code") is a 6-character hexadecimal identifier permanently assigned to an aircraft when it's first registered. Unlike callsigns (which change with each flight) or registrations (which can change if an aircraft is sold internationally), the Mode-S address stays with the airframe for the life of the aircraft in that country.

Every ADS-B transmission from an aircraft includes its Mode-S address, making it the most reliable way to identify a specific airframe. Flight-tracking services like Apparatus use the Mode-S address as the primary key for tying position broadcasts, callsigns, and ownership records together.

Prefer a tail-number view? See the N56066 page for operator, model, and routing details .

Mode-S A72A33 frequently asked

What is Mode-S code A72A33?
A72A33 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N56066.
Where is Mode-S A72A33 registered?
Mode-S code A72A33 is allocated to United States (US). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is A72A33 broadcasting right now?
Mode-S A72A33 is currently broadcasting from the ground.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A72A33, octal 51625063, decimal 10,955,315.
What flights does A72A33 operate?
Mode-S A72A33 has broadcast 1 distinct callsign, including N56066.