Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

AADF5A

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N8YJ · BELL 206 JetRanger · operated by HELICOPTERS INC

Hex
AADF5A
Octal
52557532
Decimal
11,198,298
Country
US
Tail
N8YJ
Type
B06
No current signal · last broadcast 12h ago
Flights observed
57
Distinct callsigns
1
Country
US
Last broadcast
12h ago

Last known position

Most recent position reported by Mode-S AADF5A.

Country allocation

The ICAO 24-bit address AADF5A 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
N8YJ - 57 2026-07-13

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 N8YJ - Jul 13, 15:55 UTCJul 13, 16:05 UTC10m
2026-07-13 N8YJ BKL → BKL Jul 13, 10:00 UTCJul 13, 11:40 UTC1h 40m
2026-07-09 N8YJ BKL → BKL Jul 9, 10:00 UTCJul 9, 11:40 UTC1h 40m
2026-07-08 N8YJ BKL → BKL Jul 8, 10:00 UTCJul 8, 10:35 UTC35m
2026-07-07 N8YJ BKL → BKL Jul 7, 14:30 UTCJul 7, 14:50 UTC20m
2026-07-06 N8YJ - Jul 6, 10:05 UTCJul 6, 11:15 UTC1h 10m
2026-07-02 N8YJ - Jul 2, 10:00 UTCJul 2, 11:40 UTC1h 40m
2026-07-01 N8YJ - Jul 1, 10:05 UTCJul 1, 11:10 UTC1h 5m
2026-06-30 N8YJ - Jun 30, 10:05 UTCJun 30, 12:10 UTC2h 5m
2026-06-26 N8YJ - Jun 26, 13:40 UTCJun 26, 13:49 UTC10m
2026-06-26 N8YJ - Jun 26, 12:10 UTCJun 26, 12:19 UTC10m
2026-06-25 N8YJ - Jun 25, 10:04 UTCJun 25, 11:39 UTC1h 35m
2026-06-24 N8YJ - Jun 24, 10:04 UTCJun 24, 11:14 UTC1h 10m
2026-06-23 N8YJ BKL → BKL Jun 23, 10:04 UTCJun 23, 11:45 UTC1h 40m
2026-06-19 N8YJ - Jun 19, 09:59 UTCJun 19, 11:34 UTC1h 35m
2026-06-17 N8YJ - Jun 17, 10:05 UTCJun 17, 12:10 UTC2h 5m
2026-06-16 N8YJ - Jun 16, 10:04 UTCJun 16, 11:20 UTC1h 15m
2026-06-15 N8YJ - Jun 15, 16:40 UTCJun 15, 16:49 UTC10m
2026-06-15 N8YJ - Jun 15, 15:04 UTCJun 15, 15:15 UTC10m
2026-06-15 N8YJ - Jun 15, 11:49 UTCJun 15, 12:05 UTC15m
2026-06-15 N8YJ - Jun 15, 10:00 UTCJun 15, 10:50 UTC50m
2026-06-12 N8YJ BKL → BKL Jun 12, 10:00 UTCJun 12, 11:20 UTC1h 20m
2026-06-10 N8YJ - Jun 10, 10:55 UTCJun 10, 12:40 UTC1h 45m
2026-06-09 N8YJ - Jun 9, 10:05 UTCJun 9, 11:15 UTC1h 10m
2026-06-08 N8YJ BKL → BKL Jun 8, 10:00 UTCJun 8, 12:10 UTC2h 10m
2026-06-05 N8YJ BKL → BKL Jun 5, 10:05 UTCJun 5, 11:15 UTC1h 10m
2026-06-04 N8YJ BKL → BKL Jun 4, 10:05 UTCJun 4, 11:15 UTC1h 10m
2026-06-03 N8YJ BKL → BKL Jun 3, 10:00 UTCJun 3, 11:40 UTC1h 40m
2026-06-02 N8YJ BKL → BKL Jun 2, 10:00 UTCJun 2, 11:15 UTC1h 15m
2026-06-01 N8YJ - Jun 1, 10:00 UTCJun 1, 11:20 UTC1h 20m
2026-05-29 N8YJ BKL → BKL May 29, 10:00 UTCMay 29, 11:05 UTC1h 5m
2026-05-28 N8YJ BKL → BKL May 28, 10:00 UTCMay 28, 11:10 UTC1h 10m
2026-05-27 N8YJ - May 27, 14:50 UTCMay 27, 15:15 UTC25m
2026-05-27 N8YJ - May 27, 10:00 UTCMay 27, 11:40 UTC1h 40m
2026-05-26 N8YJ - May 26, 10:05 UTCMay 26, 12:10 UTC2h 5m
2026-05-22 N8YJ - May 22, 10:05 UTCMay 22, 12:10 UTC2h 5m
2026-05-21 N8YJ BKL → BKL May 21, 10:00 UTCMay 21, 11:40 UTC1h 40m
2026-05-18 N8YJ BKL → BKL May 18, 10:05 UTCMay 18, 11:35 UTC1h 30m
2026-05-15 N8YJ BKL → BKL May 15, 10:00 UTCMay 15, 12:10 UTC2h 10m
2026-05-14 N8YJ - May 14, 10:00 UTCMay 14, 11:35 UTC1h 35m
2026-05-13 N8YJ BKL → BKL May 13, 10:05 UTCMay 13, 11:40 UTC1h 35m
2026-05-11 N8YJ BKL → BKL May 11, 10:05 UTCMay 11, 11:40 UTC1h 35m
2026-05-08 N8YJ BKL → BKL May 8, 09:59 UTCMay 8, 12:10 UTC2h 10m
2026-05-07 N8YJ BKL → BKL May 7, 10:00 UTCMay 7, 11:40 UTC1h 40m
2026-05-04 N8YJ - May 4, 15:30 UTCMay 4, 16:55 UTC1h 25m
2026-05-04 N8YJ - May 4, 10:05 UTCMay 4, 11:40 UTC1h 35m
2026-05-01 N8YJ BKL → BKL May 1, 10:00 UTCMay 1, 11:35 UTC1h 35m
2026-04-30 N8YJ - Apr 30, 10:00 UTCApr 30, 12:05 UTC2h 5m
2026-04-27 N8YJ - Apr 27, 10:05 UTCApr 27, 11:10 UTC1h 5m
2026-04-24 N8YJ BKL → BKL Apr 24, 10:00 UTCApr 24, 11:10 UTC1h 10m

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 N8YJ page for operator, model, and routing details .

Mode-S AADF5A frequently asked

What is Mode-S code AADF5A?
AADF5A is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N8YJ.
Where is Mode-S AADF5A registered?
Mode-S code AADF5A 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 AADF5A broadcasting right now?
No active broadcast right now. Last signal was 12h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AADF5A, octal 52557532, decimal 11,198,298.
What flights does AADF5A operate?
Mode-S AADF5A has broadcast 1 distinct callsign, including N8YJ.