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sensors Mode-S transponder

A9EA05

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N738NX · CESSNA 172 Skyhawk · operated by ABOVE ALL AVIATION INC

Hex
A9EA05
Octal
52365005
Decimal
11,135,493
Country
US
Tail
N738NX
Type
C172
Broadcasting now · callsign N738NX · 6,400 ft
Flights observed
130
Distinct callsigns
1
Country
US
Last broadcast
11h ago

Current position

A9EA05 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address A9EA05 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
N738NX - 130 2026-07-17

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-17 N738NX - Jul 17, 17:05 UTCJul 17, 17:55 UTC50m
2026-07-17 N738NX SBA → SBA Jul 17, 01:29 UTCJul 17, 02:30 UTC1h 0m
2026-07-16 N738NX SBA → SBA Jul 16, 18:00 UTCJul 16, 19:30 UTC1h 30m
2026-07-16 N738NX SBA → SBA Jul 16, 15:45 UTCJul 16, 17:00 UTC1h 15m
2026-07-15 N738NX SBA → SBA Jul 15, 22:45 UTCJul 16, 00:35 UTC1h 50m
2026-07-15 N738NX - Jul 15, 18:10 UTCJul 15, 19:35 UTC1h 25m
2026-07-14 N738NX SBA → SBA Jul 14, 21:20 UTCJul 14, 22:30 UTC1h 10m
2026-07-14 N738NX SBA → SBA Jul 14, 19:25 UTCJul 14, 20:15 UTC50m
2026-07-13 N738NX - Jul 13, 21:35 UTCJul 13, 22:35 UTC1h 0m
2026-07-12 N738NX - Jul 12, 23:45 UTCJul 13, 00:45 UTC1h 0m
2026-07-12 N738NX SBA → SBA Jul 12, 22:00 UTCJul 12, 23:00 UTC1h 0m
2026-07-10 N738NX SBA → SBA Jul 10, 17:50 UTCJul 10, 18:45 UTC55m
2026-07-10 N738NX - Jul 10, 01:30 UTCJul 10, 02:35 UTC1h 5m
2026-07-09 N738NX SBA → SBA Jul 9, 20:50 UTCJul 9, 22:05 UTC1h 15m
2026-07-09 N738NX - Jul 9, 01:05 UTCJul 9, 02:05 UTC1h 0m
2026-07-08 N738NX SBA → SBA Jul 8, 16:45 UTCJul 8, 17:40 UTC55m
2026-07-08 N738NX - Jul 8, 01:35 UTCJul 8, 02:35 UTC1h 0m
2026-07-07 N738NX SBP → SBA Jul 7, 22:00 UTCJul 7, 22:45 UTC45m
2026-07-07 N738NX - Jul 7, 20:15 UTCJul 7, 21:10 UTC55m
2026-07-07 N738NX SBA → SBA Jul 7, 01:20 UTCJul 7, 01:40 UTC20m
2026-07-07 N738NX SBA → SBA Jul 7, 00:55 UTCJul 7, 01:10 UTC15m
2026-07-06 N738NX - Jul 6, 22:50 UTCJul 6, 23:45 UTC55m
2026-07-06 N738NX SBA → SBA Jul 6, 20:25 UTCJul 6, 20:50 UTC25m
2026-07-06 N738NX SBA → SBA Jul 6, 19:45 UTCJul 6, 20:15 UTC30m
2026-07-06 N738NX SBA → SBA Jul 6, 18:10 UTCJul 6, 18:40 UTC30m
2026-07-03 N738NX SBA → SBA Jul 3, 23:50 UTCJul 4, 00:45 UTC55m
2026-07-03 N738NX - Jul 3, 21:20 UTCJul 3, 21:50 UTC30m
2026-07-03 N738NX SBA → SBA Jul 3, 01:40 UTCJul 3, 02:35 UTC55m
2026-07-02 N738NX - Jul 2, 21:40 UTCJul 2, 22:40 UTC1h 0m
2026-07-02 N738NX SBA → SBA Jul 2, 17:50 UTCJul 2, 18:40 UTC50m
2026-07-01 N738NX - Jul 1, 22:25 UTCJul 1, 23:15 UTC50m
2026-06-30 N738NX - Jun 30, 22:20 UTCJun 30, 22:50 UTC30m
2026-06-30 N738NX SBA → SMX Jun 30, 21:45 UTCJun 30, 22:10 UTC25m
2026-06-30 N738NX - Jun 30, 18:50 UTCJun 30, 19:45 UTC55m
2026-06-29 N738NX SBA → SBA Jun 29, 23:44 UTCJun 30, 00:30 UTC45m
2026-06-29 N738NX - Jun 29, 22:15 UTCJun 29, 22:59 UTC45m
2026-06-29 N738NX SBA → SBA Jun 29, 19:39 UTCJun 29, 20:30 UTC50m
2026-06-29 N738NX - Jun 29, 18:05 UTCJun 29, 18:49 UTC45m
2026-06-26 N738NX - Jun 26, 17:40 UTCJun 26, 18:29 UTC50m
2026-06-23 N738NX - Jun 23, 19:00 UTCJun 23, 19:44 UTC45m
2026-06-23 N738NX - Jun 23, 03:39 UTCJun 23, 04:50 UTC1h 10m
2026-06-22 N738NX - Jun 22, 20:39 UTCJun 22, 23:14 UTC2h 35m
2026-06-21 N738NX SBA → SBA Jun 21, 20:05 UTCJun 21, 20:50 UTC45m
2026-06-20 N738NX SBA → SBA Jun 20, 22:45 UTCJun 21, 00:40 UTC1h 55m
2026-06-20 N738NX - Jun 20, 16:55 UTCJun 20, 18:24 UTC1h 30m
2026-06-18 N738NX BFL → SBA Jun 18, 18:20 UTCJun 18, 19:15 UTC55m
2026-06-18 N738NX - Jun 18, 16:55 UTCJun 18, 18:10 UTC1h 15m
2026-06-18 N738NX SBA → SBA Jun 18, 00:00 UTCJun 18, 02:00 UTC2h 0m
2026-06-17 N738NX - Jun 17, 17:45 UTCJun 17, 18:45 UTC1h 0m
2026-06-17 N738NX - Jun 17, 15:50 UTCJun 17, 16:55 UTC1h 5m

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 N738NX page for operator, model, and routing details .

Mode-S A9EA05 frequently asked

What is Mode-S code A9EA05?
A9EA05 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N738NX.
Where is Mode-S A9EA05 registered?
Mode-S code A9EA05 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 A9EA05 broadcasting right now?
Yes. Mode-S A9EA05 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A9EA05, octal 52365005, decimal 11,135,493.
What flights does A9EA05 operate?
Mode-S A9EA05 has broadcast 1 distinct callsign, including N738NX.