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sensors Mode-S transponder

A8D9E2

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N67FF · HUGHES 500 · operated by SUMMIT HELICOPTER INC

Hex
A8D9E2
Octal
52154742
Decimal
11,065,826
Country
US
Tail
N67FF
Type
H500
No current signal · last broadcast 3d ago
Flights observed
36
Distinct callsigns
1
Country
US
Last broadcast
3d ago

Last known position

Most recent position reported by Mode-S A8D9E2.

Country allocation

The ICAO 24-bit address A8D9E2 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
N67FF - 36 2026-07-26

Recent flights last 36

DateFlightRouteTakeoffLandingDuration
2026-07-26 N67FF - Jul 26, 00:05 UTCJul 26, 00:15 UTC10m
2026-07-25 N67FF - Jul 25, 14:05 UTCJul 25, 14:15 UTC10m
2026-07-24 N67FF - Jul 24, 22:05 UTCJul 24, 22:15 UTC10m
2026-07-23 N67FF - Jul 23, 22:50 UTCJul 23, 23:00 UTC10m
2026-07-21 N67FF - Jul 21, 23:05 UTCJul 21, 23:15 UTC10m
2026-07-20 N67FF - Jul 20, 14:10 UTCJul 20, 14:20 UTC10m
2026-07-18 N67FF - Jul 18, 23:20 UTCJul 18, 23:30 UTC10m
2026-07-18 N67FF - Jul 18, 14:10 UTCJul 18, 14:20 UTC10m
2026-07-17 N67FF - Jul 17, 22:05 UTCJul 17, 22:20 UTC15m
2026-07-17 N67FF - Jul 17, 14:10 UTCJul 17, 14:20 UTC10m
2026-07-16 N67FF - Jul 16, 23:49 UTCJul 16, 23:59 UTC10m
2026-07-15 N67FF - Jul 15, 22:30 UTCJul 15, 22:40 UTC10m
2026-07-14 N67FF - Jul 14, 14:05 UTCJul 14, 14:15 UTC10m
2026-07-14 N67FF - Jul 14, 00:25 UTCJul 14, 00:35 UTC10m
2026-07-13 N67FF - Jul 13, 13:30 UTCJul 13, 13:40 UTC10m
2026-07-11 N67FF - Jul 11, 22:15 UTCJul 11, 22:25 UTC10m
2026-07-11 N67FF - Jul 11, 14:05 UTCJul 11, 14:15 UTC10m
2026-07-10 N67FF - Jul 10, 22:15 UTCJul 10, 22:25 UTC10m
2026-07-10 N67FF - Jul 10, 14:05 UTCJul 10, 14:15 UTC10m
2026-07-09 N67FF - Jul 9, 22:10 UTCJul 9, 22:20 UTC10m
2026-07-09 N67FF - Jul 9, 16:55 UTCJul 9, 17:05 UTC10m
2026-07-09 N67FF - Jul 9, 14:00 UTCJul 9, 14:10 UTC10m
2026-07-08 N67FF - Jul 8, 22:10 UTCJul 8, 22:35 UTC25m
2026-07-08 N67FF - Jul 8, 15:15 UTCJul 8, 20:10 UTC4h 55m
2026-07-08 N67FF - Jul 8, 13:50 UTCJul 8, 14:05 UTC15m
2026-07-07 N67FF - Jul 7, 13:35 UTCJul 7, 23:05 UTC9h 30m
2026-07-06 N67FF - Jul 6, 13:35 UTCJul 6, 23:05 UTC9h 30m
2026-07-01 N67FF - Jul 1, 16:30 UTCJul 1, 16:40 UTC10m
2026-07-01 N67FF - Jul 1, 13:45 UTCJul 1, 14:00 UTC15m
2026-06-30 N67FF - Jun 30, 17:45 UTCJun 30, 23:10 UTC5h 25m
2026-06-30 N67FF - Jun 30, 14:00 UTCJun 30, 14:10 UTC10m
2026-06-29 N67FF - Jun 29, 18:30 UTCJun 29, 22:44 UTC4h 15m
2026-06-29 N67FF - Jun 29, 15:24 UTCJun 29, 17:05 UTC1h 40m
2026-06-27 N67FF - Jun 27, 15:49 UTCJun 27, 16:35 UTC45m
2026-06-22 N67FF - Jun 22, 18:54 UTCJun 22, 20:00 UTC1h 5m
2026-06-20 N67FF - Jun 20, 20:25 UTCJun 20, 21:19 UTC55m

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 N67FF page for operator, model, and routing details .

Mode-S A8D9E2 frequently asked

What is Mode-S code A8D9E2?
A8D9E2 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N67FF.
Where is Mode-S A8D9E2 registered?
Mode-S code A8D9E2 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 A8D9E2 broadcasting right now?
No active broadcast right now. Last signal was 3d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A8D9E2, octal 52154742, decimal 11,065,826.
What flights does A8D9E2 operate?
Mode-S A8D9E2 has broadcast 1 distinct callsign, including N67FF.