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sensors Mode-S transponder

A9A5A2

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N720XJ · CESSNA 750 Citation 10 · operated by TVPX AIRCRAFT SOLUTIONS INC TRUSTEE

Hex
A9A5A2
Octal
52322642
Decimal
11,117,986
Country
US
Tail
N720XJ
Type
C750
Broadcasting now · callsign TCN720 · 47,000 ft
Flights observed
194
Distinct callsigns
2
Country
US
Last broadcast
Jul 26, 17:50 UTC

Current position

A9A5A2 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address A9A5A2 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
TCN720 - 193 2026-07-26
N720XJ - 1 2026-04-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 TCN720 - Jul 26, 13:10 UTCJul 26, 17:45 UTC4h 35m
2026-07-25 TCN720 - Jul 25, 17:30 UTCJul 25, 19:20 UTC1h 50m
2026-07-24 TCN720 - Jul 24, 22:15 UTCJul 24, 23:10 UTC55m
2026-07-24 TCN720 - Jul 24, 18:25 UTCJul 24, 21:05 UTC2h 40m
2026-07-24 TCN720 HSH → BFI Jul 24, 02:10 UTCJul 24, 04:05 UTC1h 55m
2026-07-23 TCN720 - Jul 23, 21:55 UTCJul 24, 01:20 UTC3h 25m
2026-07-23 TCN720 - Jul 23, 00:15 UTCJul 23, 00:50 UTC35m
2026-07-22 TCN720 - Jul 22, 21:25 UTCJul 22, 23:15 UTC1h 50m
2026-07-21 TCN720 - Jul 21, 23:45 UTCJul 22, 01:35 UTC1h 50m
2026-07-21 TCN720 - Jul 21, 19:15 UTCJul 21, 22:35 UTC3h 20m
2026-07-21 TCN720 - Jul 21, 01:20 UTCJul 21, 01:40 UTC20m
2026-07-20 TCN720 - Jul 20, 22:25 UTCJul 21, 00:05 UTC1h 40m
2026-07-20 TCN720 TKF → COE Jul 20, 19:50 UTCJul 20, 21:05 UTC1h 15m
2026-07-20 TCN720 - Jul 20, 01:25 UTCJul 20, 18:05 UTC16h 40m
2026-07-15 TCN720 - Jul 15, 18:25 UTCJul 15, 19:35 UTC1h 10m
2026-07-15 TCN720 - Jul 15, 03:15 UTCJul 15, 04:05 UTC50m
2026-07-14 TCN720 - Jul 14, 23:25 UTCJul 15, 02:10 UTC2h 45m
2026-07-13 TCN720 - Jul 13, 20:15 UTCJul 13, 22:20 UTC2h 5m
2026-07-13 TCN720 - Jul 13, 19:05 UTCJul 13, 19:20 UTC15m
2026-07-13 TCN720 - Jul 13, 16:20 UTCJul 13, 17:45 UTC1h 25m
2026-07-13 TCN720 - Jul 13, 00:35 UTCJul 13, 01:25 UTC50m
2026-07-12 TCN720 - Jul 12, 22:00 UTCJul 12, 23:40 UTC1h 40m
2026-07-12 TCN720 - Jul 12, 18:15 UTCJul 12, 20:25 UTC2h 10m
2026-07-12 TCN720 - Jul 12, 14:01 UTCJul 12, 16:15 UTC2h 15m
2026-07-12 TCN720 - Jul 12, 00:10 UTCJul 12, 00:45 UTC35m
2026-07-11 TCN720 TPA → ALB Jul 11, 21:20 UTCJul 11, 23:35 UTC2h 15m
2026-07-11 TCN720 - Jul 11, 19:10 UTCJul 11, 20:35 UTC1h 25m
2026-07-11 TCN720 - Jul 11, 02:50 UTCJul 11, 04:50 UTC2h 0m
2026-07-11 TCN720 LAS → OKC Jul 11, 00:15 UTCJul 11, 02:10 UTC1h 55m
2026-07-10 TCN720 TPA → LAS Jul 10, 18:45 UTCJul 10, 22:45 UTC4h 0m
2026-07-10 TCN720 - Jul 10, 16:30 UTCJul 10, 17:10 UTC40m
2026-07-08 TCN720 - Jul 8, 18:20 UTCJul 8, 23:10 UTC4h 50m
2026-07-08 TCN720 - Jul 8, 03:50 UTCJul 8, 04:25 UTC35m
2026-07-07 TCN720 - Jul 7, 22:00 UTCJul 8, 02:35 UTC4h 35m
2026-07-07 TCN720 - Jul 7, 20:30 UTCJul 7, 20:50 UTC20m
2026-07-07 TCN720 - Jul 7, 17:00 UTCJul 7, 19:25 UTC2h 25m
2026-07-06 TCN720 - Jul 6, 21:00 UTCJul 6, 22:00 UTC1h 0m
2026-07-06 TCN720 - Jul 6, 18:00 UTCJul 6, 19:25 UTC1h 25m
2026-07-05 TCN720 - Jul 5, 22:55 UTCJul 6, 00:15 UTC1h 20m
2026-07-05 TCN720 - Jul 5, 20:25 UTCJul 5, 20:45 UTC20m
2026-07-05 TCN720 - Jul 5, 17:25 UTCJul 5, 19:20 UTC1h 55m
2026-07-04 TCN720 - Jul 4, 21:00 UTCJul 4, 21:30 UTC30m
2026-07-01 TCN720 - Jul 1, 21:35 UTCJul 1, 22:30 UTC55m
2026-07-01 TCN720 - Jul 1, 14:20 UTCJul 1, 18:10 UTC3h 50m
2026-06-30 TCN720 - Jun 30, 19:50 UTCJun 30, 21:15 UTC1h 25m
2026-06-30 TCN720 - Jun 30, 16:10 UTCJun 30, 17:55 UTC1h 45m
2026-06-30 TCN720 APA → ADS Jun 30, 13:40 UTCJun 30, 15:10 UTC1h 30m
2026-06-29 TCN720 - Jun 29, 15:30 UTCJun 29, 18:14 UTC2h 45m
2026-06-28 TCN720 - Jun 28, 18:14 UTCJun 28, 21:10 UTC2h 55m
2026-06-27 TCN720 TEB → LAS Jun 27, 15:19 UTCJun 27, 23:04 UTC7h 45m

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 N720XJ page for operator, model, and routing details .

Mode-S A9A5A2 frequently asked

What is Mode-S code A9A5A2?
A9A5A2 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N720XJ.
Where is Mode-S A9A5A2 registered?
Mode-S code A9A5A2 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 A9A5A2 broadcasting right now?
Yes. Mode-S A9A5A2 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A9A5A2, octal 52322642, decimal 11,117,986.
What flights does A9A5A2 operate?
Mode-S A9A5A2 has broadcast 2 distinct callsigns, including TCN720, N720XJ.