Apparatus

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sensors Mode-S transponder

AAB13D

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N78842 · CESSNA 172 Skyhawk · operated by HELICE SARCELLE LLC

Hex
AAB13D
Octal
52530475
Decimal
11,186,493
Country
US
Tail
N78842
Type
C172
No current signal · last broadcast 7h ago
Flights observed
111
Distinct callsigns
1
Country
US
Last broadcast
7h ago

Last known position

Most recent position reported by Mode-S AAB13D.

Country allocation

The ICAO 24-bit address AAB13D 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
N78842 - 111 2026-06-17

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-17 N78842 - Jun 17, 21:15 UTCJun 17, 23:10 UTC1h 55m
2026-06-17 N78842 - Jun 17, 18:35 UTCJun 17, 19:50 UTC1h 15m
2026-06-17 N78842 - Jun 17, 15:50 UTCJun 17, 17:50 UTC2h 0m
2026-06-17 N78842 - Jun 17, 14:25 UTCJun 17, 15:00 UTC35m
2026-06-17 N78842 - Jun 17, 12:40 UTCJun 17, 13:50 UTC1h 10m
2026-06-16 N78842 - Jun 16, 23:40 UTCJun 17, 01:25 UTC1h 45m
2026-06-16 N78842 - Jun 16, 20:35 UTCJun 16, 22:40 UTC2h 5m
2026-06-14 N78842 - Jun 14, 19:25 UTCJun 14, 20:15 UTC50m
2026-06-14 N78842 - Jun 14, 13:35 UTCJun 14, 16:35 UTC3h 0m
2026-06-13 N78842 - Jun 13, 18:10 UTCJun 13, 19:05 UTC55m
2026-06-13 N78842 - Jun 13, 15:40 UTCJun 13, 16:25 UTC45m
2026-06-13 N78842 - Jun 13, 13:35 UTCJun 13, 14:25 UTC50m
2026-06-13 N78842 - Jun 13, 00:15 UTCJun 13, 00:50 UTC35m
2026-06-12 N78842 - Jun 12, 22:50 UTCJun 12, 23:20 UTC30m
2026-06-12 N78842 - Jun 12, 20:25 UTCJun 12, 22:10 UTC1h 45m
2026-06-12 N78842 - Jun 12, 18:30 UTCJun 12, 19:00 UTC30m
2026-06-12 N78842 - Jun 12, 14:15 UTCJun 12, 14:45 UTC30m
2026-06-11 N78842 - Jun 11, 18:45 UTCJun 11, 20:00 UTC1h 15m
2026-06-10 N78842 - Jun 10, 19:20 UTCJun 10, 21:10 UTC1h 50m
2026-06-10 N78842 - Jun 10, 16:20 UTCJun 10, 18:05 UTC1h 45m
2026-06-09 N78842 - Jun 9, 22:00 UTCJun 9, 23:30 UTC1h 30m
2026-06-09 N78842 - Jun 9, 20:55 UTCJun 9, 21:25 UTC30m
2026-06-09 N78842 - Jun 9, 18:55 UTCJun 9, 20:05 UTC1h 10m
2026-06-09 N78842 - Jun 9, 15:40 UTCJun 9, 15:50 UTC10m
2026-06-08 N78842 - Jun 8, 17:45 UTCJun 8, 18:20 UTC35m
2026-06-08 N78842 - Jun 8, 15:25 UTCJun 8, 16:45 UTC1h 20m
2026-06-07 N78842 - Jun 7, 21:10 UTCJun 7, 23:45 UTC2h 35m
2026-06-07 N78842 - Jun 7, 19:50 UTCJun 7, 20:35 UTC45m
2026-06-03 N78842 - Jun 3, 15:15 UTCJun 3, 15:25 UTC10m
2026-06-03 N78842 - Jun 3, 12:20 UTCJun 3, 12:35 UTC15m
2026-06-02 N78842 - Jun 2, 20:20 UTCJun 2, 21:35 UTC1h 15m
2026-06-02 N78842 - Jun 2, 18:10 UTCJun 2, 18:55 UTC45m
2026-06-02 N78842 - Jun 2, 01:20 UTCJun 2, 02:45 UTC1h 25m
2026-06-01 N78842 - Jun 1, 23:45 UTCJun 2, 00:25 UTC40m
2026-06-01 N78842 - Jun 1, 19:25 UTCJun 1, 20:20 UTC55m
2026-06-01 N78842 - Jun 1, 18:00 UTCJun 1, 18:20 UTC20m
2026-06-01 N78842 - Jun 1, 16:30 UTCJun 1, 17:25 UTC55m
2026-06-01 N78842 - Jun 1, 13:40 UTCJun 1, 15:35 UTC1h 55m
2026-06-01 N78842 - Jun 1, 01:55 UTCJun 1, 04:45 UTC2h 50m
2026-05-30 N78842 - May 30, 20:20 UTCMay 30, 22:25 UTC2h 5m
2026-05-30 N78842 - May 30, 18:40 UTCMay 30, 19:05 UTC25m
2026-05-30 N78842 - May 30, 17:20 UTCMay 30, 18:00 UTC40m
2026-05-29 N78842 - May 29, 22:40 UTCMay 30, 00:15 UTC1h 35m
2026-05-29 N78842 - May 29, 17:10 UTCMay 29, 20:05 UTC2h 55m
2026-05-29 N78842 - May 29, 12:00 UTCMay 29, 14:30 UTC2h 30m
2026-05-27 N78842 - May 27, 21:05 UTCMay 27, 23:10 UTC2h 5m
2026-05-27 N78842 - May 27, 18:35 UTCMay 27, 19:45 UTC1h 10m
2026-05-26 N78842 - May 26, 20:05 UTCMay 26, 21:44 UTC1h 40m
2026-05-26 N78842 - May 26, 19:10 UTCMay 26, 19:30 UTC20m
2026-05-25 N78842 - May 25, 21:40 UTCMay 25, 22:30 UTC50m

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 N78842 page for operator, model, and routing details .

Mode-S AAB13D frequently asked

What is Mode-S code AAB13D?
AAB13D is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N78842.
Where is Mode-S AAB13D registered?
Mode-S code AAB13D 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 AAB13D broadcasting right now?
No active broadcast right now. Last signal was 7h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AAB13D, octal 52530475, decimal 11,186,493.
What flights does AAB13D operate?
Mode-S AAB13D has broadcast 1 distinct callsign, including N78842.