Apparatus

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sensors Mode-S transponder

A9EAEC

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N738YC · CESSNA 172 Skyhawk · operated by N738YC LLC

Hex
A9EAEC
Octal
52365354
Decimal
11,135,724
Country
US
Tail
N738YC
Type
C172
Broadcasting now · callsign N738YC · 2,875 ft
Flights observed
59
Distinct callsigns
1
Country
US
Last broadcast
18h ago

Current position

A9EAEC is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address A9EAEC 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
N738YC - 59 2026-05-29

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 N738YC SAC → SAC May 29, 22:00 UTCMay 29, 23:05 UTC1h 5m
2026-05-29 N738YC SAC → SAC May 29, 20:05 UTCMay 29, 20:50 UTC45m
2026-05-29 N738YC SAC → SAC May 29, 17:40 UTCMay 29, 18:50 UTC1h 10m
2026-05-28 N738YC SAC → SAC May 28, 21:45 UTCMay 28, 22:05 UTC20m
2026-05-28 N738YC SAC → SAC May 28, 14:45 UTCMay 28, 14:50 UTC5m
2026-05-26 N738YC SAC → SAC May 26, 22:05 UTCMay 26, 22:20 UTC15m
2026-05-22 N738YC - May 22, 18:45 UTCMay 22, 20:55 UTC2h 10m
2026-05-22 N738YC - May 22, 05:20 UTCMay 22, 06:15 UTC55m
2026-05-21 N738YC - May 21, 23:50 UTCMay 22, 00:45 UTC55m
2026-05-20 N738YC SAC → SAC May 20, 18:55 UTCMay 20, 19:55 UTC1h 0m
2026-05-20 N738YC SAC → SAC May 20, 16:05 UTCMay 20, 16:45 UTC40m
2026-05-20 N738YC SAC → SAC May 20, 01:45 UTCMay 20, 02:45 UTC1h 0m
2026-05-19 N738YC SAC → SAC May 19, 23:45 UTCMay 20, 00:25 UTC40m
2026-05-19 N738YC SAC → SAC May 19, 18:40 UTCMay 19, 20:35 UTC1h 55m
2026-05-19 N738YC - May 19, 16:10 UTCMay 19, 17:10 UTC1h 0m
2026-05-19 N738YC SAC → SAC May 19, 02:25 UTCMay 19, 04:45 UTC2h 20m
2026-05-17 N738YC SAC → SAC May 17, 04:20 UTCMay 17, 04:40 UTC20m
2026-05-14 N738YC - May 14, 19:50 UTCMay 14, 20:45 UTC55m
2026-05-14 N738YC - May 14, 18:10 UTCMay 14, 19:10 UTC1h 0m
2026-05-13 N738YC - May 13, 22:50 UTCMay 14, 00:10 UTC1h 20m
2026-05-13 N738YC SAC → RBL May 13, 20:50 UTCMay 13, 22:10 UTC1h 20m
2026-05-13 N738YC SAC → SAC May 13, 19:45 UTCMay 13, 20:15 UTC30m
2026-05-12 N738YC SAC → SAC May 12, 20:15 UTCMay 12, 21:40 UTC1h 25m
2026-05-12 N738YC SAC → SAC May 12, 16:55 UTCMay 12, 17:55 UTC1h 0m
2026-05-11 N738YC - May 11, 22:10 UTCMay 11, 22:35 UTC24m
2026-05-11 N738YC - May 11, 20:20 UTCMay 11, 21:25 UTC1h 5m
2026-05-11 N738YC - May 11, 18:05 UTCMay 11, 19:10 UTC1h 5m
2026-05-11 N738YC SAC → SAC May 11, 14:50 UTCMay 11, 16:45 UTC1h 55m
2026-05-09 N738YC SAC → SAC May 9, 23:50 UTCMay 10, 02:04 UTC2h 15m
2026-05-09 N738YC SAC → SAC May 9, 19:05 UTCMay 9, 20:44 UTC1h 40m
2026-05-09 N738YC - May 9, 17:55 UTCMay 9, 18:10 UTC15m
2026-05-09 N738YC - May 9, 17:00 UTCMay 9, 17:35 UTC35m
2026-05-09 N738YC SAC → SAC May 9, 01:05 UTCMay 9, 02:05 UTC1h 0m
2026-05-08 N738YC SAC → SAC May 8, 19:10 UTCMay 8, 20:10 UTC1h 0m
2026-05-08 N738YC - May 8, 17:00 UTCMay 8, 17:45 UTC45m
2026-05-07 N738YC SAC → SAC May 7, 21:00 UTCMay 7, 21:50 UTC50m
2026-05-06 N738YC - May 6, 23:05 UTCMay 7, 00:20 UTC1h 15m
2026-05-06 N738YC - May 6, 22:05 UTCMay 6, 22:55 UTC50m
2026-05-06 N738YC SAC → SAC May 6, 19:45 UTCMay 6, 20:10 UTC25m
2026-05-06 N738YC - May 6, 17:10 UTCMay 6, 18:30 UTC1h 19m
2026-05-02 N738YC - May 2, 23:55 UTCMay 3, 00:30 UTC35m
2026-05-02 N738YC - May 2, 19:25 UTCMay 2, 20:10 UTC45m
2026-05-02 N738YC SAC → SAC May 2, 00:20 UTCMay 2, 00:45 UTC25m
2026-05-01 N738YC SAC → SAC May 1, 18:50 UTCMay 1, 19:40 UTC50m
2026-05-01 N738YC SAC → SAC May 1, 16:20 UTCMay 1, 17:45 UTC1h 25m
2026-04-30 N738YC SAC → SAC Apr 30, 02:40 UTCApr 30, 03:00 UTC20m
2026-04-30 N738YC SAC → SAC Apr 30, 02:15 UTCApr 30, 02:25 UTC10m
2026-04-28 N738YC SAC → SAC Apr 28, 20:20 UTCApr 28, 21:19 UTC1h 0m
2026-04-27 N738YC - Apr 27, 21:25 UTCApr 27, 22:25 UTC1h 0m
2026-04-26 N738YC - Apr 26, 19:05 UTCApr 26, 19:15 UTC10m

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 N738YC page for operator, model, and routing details .

Mode-S A9EAEC frequently asked

What is Mode-S code A9EAEC?
A9EAEC is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N738YC.
Where is Mode-S A9EAEC registered?
Mode-S code A9EAEC 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 A9EAEC broadcasting right now?
Yes. Mode-S A9EAEC is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A9EAEC, octal 52365354, decimal 11,135,724.
What flights does A9EAEC operate?
Mode-S A9EAEC has broadcast 1 distinct callsign, including N738YC.