Apparatus

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sensors Mode-S transponder

A4B97D

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N403TP · GROB G-120 · operated by TVPX AIRCRAFT SOLUTIONS INC TRUSTEE

Hex
A4B97D
Octal
51134575
Decimal
10,795,389
Country
US
Tail
N403TP
Type
G120
No current signal · last broadcast 15h ago
Flights observed
77
Distinct callsigns
1
Country
US
Last broadcast
15h ago

Last known position

Most recent position reported by Mode-S A4B97D.

Country allocation

The ICAO 24-bit address A4B97D 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
N403TP - 77 2026-07-13

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 N403TP GYR → GYR Jul 13, 18:35 UTCJul 13, 20:00 UTC1h 25m
2026-07-07 N403TP GYR → GYR Jul 7, 19:45 UTCJul 7, 20:45 UTC1h 0m
2026-07-02 N403TP - Jul 2, 20:45 UTCJul 2, 21:10 UTC25m
2026-07-02 N403TP - Jul 2, 15:45 UTCJul 2, 16:10 UTC25m
2026-07-01 N403TP - Jul 1, 21:15 UTCJul 1, 21:20 UTC5m
2026-07-01 N403TP LUF → LUF Jul 1, 19:30 UTCJul 1, 20:15 UTC45m
2026-07-01 N403TP - Jul 1, 18:10 UTCJul 1, 18:20 UTC10m
2026-06-30 N403TP - Jun 30, 20:10 UTCJun 30, 21:25 UTC1h 15m
2026-06-26 N403TP GYR → GYR Jun 26, 15:29 UTCJun 26, 16:35 UTC1h 5m
2026-06-25 N403TP GYR → GYR Jun 25, 18:04 UTCJun 25, 18:10 UTC5m
2026-06-25 N403TP - Jun 25, 16:14 UTCJun 25, 16:59 UTC45m
2026-06-25 N403TP GYR → LUF Jun 25, 14:44 UTCJun 25, 15:04 UTC20m
2026-06-22 N403TP GYR → GYR Jun 22, 17:34 UTCJun 22, 19:09 UTC1h 35m
2026-06-19 N403TP - Jun 19, 15:29 UTCJun 19, 16:39 UTC1h 10m
2026-06-18 N403TP - Jun 18, 19:40 UTCJun 18, 21:00 UTC1h 20m
2026-06-18 N403TP - Jun 18, 16:40 UTCJun 18, 17:50 UTC1h 10m
2026-06-17 N403TP GYR → GYR Jun 17, 14:35 UTCJun 17, 16:40 UTC2h 5m
2026-06-16 N403TP - Jun 16, 20:00 UTCJun 16, 20:45 UTC45m
2026-06-16 N403TP - Jun 16, 19:15 UTCJun 16, 19:25 UTC10m
2026-06-16 N403TP - Jun 16, 17:30 UTCJun 16, 17:45 UTC15m
2026-06-16 N403TP - Jun 16, 16:30 UTCJun 16, 16:50 UTC20m
2026-06-15 N403TP GYR → GYR Jun 15, 15:25 UTCJun 15, 16:35 UTC1h 10m
2026-06-10 N403TP GYR → GYR Jun 10, 15:30 UTCJun 10, 16:45 UTC1h 15m
2026-06-09 N403TP GYR → GYR Jun 9, 17:45 UTCJun 9, 19:05 UTC1h 20m
2026-06-09 N403TP GYR → GYR Jun 9, 16:45 UTCJun 9, 16:55 UTC10m
2026-06-09 N403TP - Jun 9, 15:30 UTCJun 9, 15:50 UTC20m
2026-06-08 N403TP GYR → GYR Jun 8, 16:05 UTCJun 8, 17:15 UTC1h 10m
2026-06-05 N403TP GYR → GYR Jun 5, 15:15 UTCJun 5, 16:15 UTC1h 0m
2026-06-04 N403TP HII → GYR Jun 4, 19:45 UTCJun 4, 20:55 UTC1h 10m
2026-06-04 N403TP - Jun 4, 17:45 UTCJun 4, 18:00 UTC15m
2026-06-04 N403TP - Jun 4, 16:45 UTCJun 4, 17:10 UTC25m
2026-06-02 N403TP GYR → GYR Jun 2, 15:50 UTCJun 2, 17:10 UTC1h 20m
2026-06-01 N403TP GYR → GYR Jun 1, 18:20 UTCJun 1, 19:45 UTC1h 25m
2026-06-01 N403TP GYR → GYR Jun 1, 16:05 UTCJun 1, 17:15 UTC1h 10m
2026-05-29 N403TP GYR → GYR May 29, 15:40 UTCMay 29, 17:05 UTC1h 25m
2026-05-28 N403TP GYR → GYR May 28, 15:30 UTCMay 28, 17:00 UTC1h 30m
2026-05-27 N403TP GYR → GYR May 27, 17:00 UTCMay 27, 18:15 UTC1h 15m
2026-05-26 N403TP GYR → GYR May 26, 18:45 UTCMay 26, 19:55 UTC1h 10m
2026-05-26 N403TP GYR → GYR May 26, 16:15 UTCMay 26, 17:44 UTC1h 30m
2026-05-22 N403TP GYR → GYR May 22, 15:35 UTCMay 22, 17:10 UTC1h 35m
2026-05-21 N403TP GYR → GYR May 21, 18:10 UTCMay 21, 19:35 UTC1h 25m
2026-05-21 N403TP GYR → GYR May 21, 15:25 UTCMay 21, 16:55 UTC1h 30m
2026-05-20 N403TP GYR → GYR May 20, 19:00 UTCMay 20, 20:20 UTC1h 20m
2026-05-20 N403TP GYR → GYR May 20, 16:00 UTCMay 20, 17:25 UTC1h 25m
2026-05-19 N403TP GYR → GYR May 19, 16:20 UTCMay 19, 17:55 UTC1h 35m
2026-05-18 N403TP GYR → GYR May 18, 18:35 UTCMay 18, 20:05 UTC1h 30m
2026-05-18 N403TP GYR → GYR May 18, 15:50 UTCMay 18, 17:25 UTC1h 35m
2026-05-15 N403TP - May 15, 15:15 UTCMay 15, 17:00 UTC1h 45m
2026-05-14 N403TP GYR → GYR May 14, 18:05 UTCMay 14, 19:35 UTC1h 30m
2026-05-14 N403TP GYR → GYR May 14, 15:25 UTCMay 14, 17:00 UTC1h 35m

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 N403TP page for operator, model, and routing details .

Mode-S A4B97D frequently asked

What is Mode-S code A4B97D?
A4B97D is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N403TP.
Where is Mode-S A4B97D registered?
Mode-S code A4B97D 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 A4B97D broadcasting right now?
No active broadcast right now. Last signal was 15h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A4B97D, octal 51134575, decimal 10,795,389.
What flights does A4B97D operate?
Mode-S A4B97D has broadcast 1 distinct callsign, including N403TP.