Apparatus

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sensors Mode-S transponder

A9E61C

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N737LX · CESSNA 172 Skyhawk · operated by REGISTRATION PENDING

Hex
A9E61C
Octal
52363034
Decimal
11,134,492
Country
US
Tail
N737LX
Type
C172
No current signal · last broadcast 7d ago
Flights observed
107
Distinct callsigns
2
Country
US
Last broadcast
7d ago

Last known position

Most recent position reported by Mode-S A9E61C.

Country allocation

The ICAO 24-bit address A9E61C 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 2 distinct

Callsign Airline Flights Last seen
AVL417 - 74 2026-07-10
AVL117 - 33 2026-05-01

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-10 AVL417 - Jul 10, 15:00 UTCJul 10, 15:15 UTC15m
2026-06-24 AVL417 - Jun 24, 16:09 UTCJun 24, 16:50 UTC40m
2026-06-24 AVL417 - Jun 24, 14:39 UTCJun 24, 15:14 UTC35m
2026-06-22 AVL417 - Jun 22, 15:50 UTCJun 22, 16:40 UTC50m
2026-06-22 AVL417 - Jun 22, 12:54 UTCJun 22, 14:14 UTC1h 20m
2026-06-21 AVL417 - Jun 21, 18:35 UTCJun 21, 19:29 UTC55m
2026-06-21 AVL417 - Jun 21, 00:59 UTCJun 21, 01:25 UTC25m
2026-06-20 AVL417 - Jun 20, 16:09 UTCJun 20, 17:04 UTC55m
2026-06-20 AVL417 - Jun 20, 11:44 UTCJun 20, 12:39 UTC55m
2026-06-19 AVL417 - Jun 19, 19:09 UTCJun 19, 20:09 UTC1h 0m
2026-06-19 AVL417 - Jun 19, 14:44 UTCJun 19, 15:04 UTC20m
2026-06-17 AVL417 - Jun 17, 18:35 UTCJun 17, 19:40 UTC1h 5m
2026-06-17 AVL417 - Jun 17, 16:00 UTCJun 17, 17:05 UTC1h 5m
2026-06-17 AVL417 - Jun 17, 13:10 UTCJun 17, 14:35 UTC1h 25m
2026-06-16 AVL417 - Jun 16, 17:49 UTCJun 16, 18:45 UTC55m
2026-06-16 AVL417 - Jun 16, 16:00 UTCJun 16, 16:35 UTC35m
2026-06-15 AVL417 - Jun 15, 18:40 UTCJun 15, 19:25 UTC45m
2026-06-13 AVL417 - Jun 13, 18:05 UTCJun 13, 19:20 UTC1h 15m
2026-06-13 AVL417 - Jun 13, 13:55 UTCJun 13, 14:45 UTC50m
2026-06-13 AVL417 - Jun 13, 12:35 UTCJun 13, 13:00 UTC25m
2026-06-12 AVL417 - Jun 12, 16:25 UTCJun 12, 17:00 UTC35m
2026-06-12 AVL417 - Jun 12, 14:20 UTCJun 12, 14:50 UTC30m
2026-06-11 AVL417 - Jun 11, 13:45 UTCJun 11, 14:25 UTC40m
2026-06-08 AVL417 - Jun 8, 19:10 UTCJun 8, 20:15 UTC1h 5m
2026-06-08 AVL417 - Jun 8, 16:45 UTCJun 8, 17:40 UTC55m
2026-06-08 AVL417 - Jun 8, 12:45 UTCJun 8, 13:45 UTC1h 0m
2026-06-07 AVL417 - Jun 7, 18:00 UTCJun 7, 18:30 UTC30m
2026-06-07 AVL417 - Jun 7, 13:10 UTCJun 7, 14:00 UTC50m
2026-06-06 AVL417 - Jun 6, 17:54 UTCJun 6, 18:59 UTC1h 5m
2026-06-06 AVL417 - Jun 6, 15:19 UTCJun 6, 16:14 UTC55m
2026-06-05 AVL417 - Jun 5, 20:15 UTCJun 5, 20:45 UTC30m
2026-06-05 AVL417 - Jun 5, 13:45 UTCJun 5, 14:30 UTC45m
2026-06-04 AVL417 - Jun 4, 19:30 UTCJun 4, 20:30 UTC1h 0m
2026-06-04 AVL417 - Jun 4, 13:55 UTCJun 4, 14:55 UTC1h 0m
2026-06-03 AVL417 - Jun 3, 14:10 UTCJun 3, 15:25 UTC1h 15m
2026-06-02 AVL417 - Jun 2, 19:05 UTCJun 2, 19:35 UTC30m
2026-06-02 AVL417 - Jun 2, 16:55 UTCJun 2, 17:50 UTC55m
2026-06-02 AVL417 - Jun 2, 12:40 UTCJun 2, 13:40 UTC1h 0m
2026-06-01 AVL417 - Jun 1, 15:30 UTCJun 1, 16:10 UTC40m
2026-06-01 AVL417 - Jun 1, 13:00 UTCJun 1, 13:35 UTC35m
2026-05-31 AVL417 - May 31, 18:25 UTCMay 31, 19:10 UTC45m
2026-05-31 AVL417 - May 31, 11:50 UTCMay 31, 12:10 UTC20m
2026-05-30 AVL417 - May 30, 18:25 UTCMay 30, 19:30 UTC1h 5m
2026-05-30 AVL417 - May 30, 16:20 UTCMay 30, 17:05 UTC45m
2026-05-30 AVL417 - May 30, 11:35 UTCMay 30, 13:20 UTC1h 45m
2026-05-28 AVL417 - May 28, 16:35 UTCMay 28, 17:25 UTC50m
2026-05-28 AVL417 - May 28, 14:25 UTCMay 28, 15:05 UTC40m
2026-05-20 AVL417 - May 20, 18:20 UTCMay 20, 19:10 UTC50m
2026-05-20 AVL417 - May 20, 14:05 UTCMay 20, 15:10 UTC1h 5m
2026-05-19 AVL417 - May 19, 17:50 UTCMay 19, 18:05 UTC15m

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 N737LX page for operator, model, and routing details .

Mode-S A9E61C frequently asked

What is Mode-S code A9E61C?
A9E61C is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N737LX.
Where is Mode-S A9E61C registered?
Mode-S code A9E61C 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 A9E61C broadcasting right now?
No active broadcast right now. Last signal was 7d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A9E61C, octal 52363034, decimal 11,134,492.
What flights does A9E61C operate?
Mode-S A9E61C has broadcast 2 distinct callsigns, including AVL417, AVL117.