sensors Mode-S transponder

A9BD87

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N72695 · CESSNA T206 Turbo Stationair · operated by SURDEX CORP

Hex
A9BD87
Octal
52336607
Decimal
11,124,103
Country
US
Tail
N72695
Type
T206
No current signal · last broadcast 14h ago
Flights observed
33
Distinct callsigns
1
Country
US
Last broadcast
14h ago

Last known position

Most recent position reported by Mode-S A9BD87.

Country allocation

The ICAO 24-bit address A9BD87 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
N72695 - 32 2026-05-29

Recent flights last 33

DateFlightRouteTakeoffLandingDuration
2026-05-29 N72695 - May 29, 16:45 UTCMay 29, 17:05 UTC20m
2026-05-28 N72695 - May 28, 19:35 UTCMay 28, 20:15 UTC40m
2026-05-19 N72695 - May 19, 14:25 UTCMay 19, 14:50 UTC25m
2026-05-14 N72695 - May 14, 01:25 UTCMay 14, 01:40 UTC15m
2026-05-13 N72695 - May 13, 14:05 UTCMay 13, 14:35 UTC30m
2026-05-12 N72695 - May 12, 23:10 UTCMay 12, 23:25 UTC15m
2026-05-12 N72695 - May 12, 20:20 UTCMay 12, 21:15 UTC55m
2026-05-12 N72695 - May 12, 18:15 UTCMay 12, 18:35 UTC20m
2026-05-12 - - May 12, 17:00 UTCMay 12, 17:20 UTC20m
2026-05-12 N72695 - May 12, 13:35 UTCMay 12, 16:15 UTC2h 40m
2026-05-11 N72695 - May 11, 20:55 UTCMay 11, 22:35 UTC1h 39m
2026-05-11 N72695 - May 11, 13:50 UTCMay 11, 18:40 UTC4h 51m
2026-05-09 N72695 - May 9, 22:20 UTCMay 9, 22:34 UTC15m
2026-05-09 N72695 - May 9, 13:55 UTCMay 9, 16:45 UTC2h 50m
2026-05-08 N72695 - May 8, 21:30 UTCMay 8, 22:55 UTC1h 25m
2026-05-08 N72695 - May 8, 19:25 UTCMay 8, 20:25 UTC1h 0m
2026-05-08 N72695 - May 8, 13:45 UTCMay 8, 18:00 UTC4h 15m
2026-05-07 N72695 - May 7, 17:00 UTCMay 7, 19:35 UTC2h 35m
2026-04-30 N72695 - Apr 30, 16:45 UTCApr 30, 17:10 UTC25m
2026-04-30 N72695 - Apr 30, 14:05 UTCApr 30, 16:10 UTC2h 5m
2026-04-29 N72695 - Apr 29, 17:35 UTCApr 29, 18:15 UTC40m
2026-04-29 N72695 - Apr 29, 14:10 UTCApr 29, 14:45 UTC35m
2026-04-28 N72695 - Apr 28, 20:50 UTCApr 28, 21:10 UTC20m
2026-04-28 N72695 - Apr 28, 18:05 UTCApr 28, 19:30 UTC1h 25m
2026-04-28 N72695 - Apr 28, 13:50 UTCApr 28, 15:20 UTC1h 30m
2026-04-28 N72695 - Apr 28, 12:15 UTCApr 28, 12:50 UTC35m
2026-04-27 N72695 SUS → SUS Apr 27, 14:25 UTCApr 27, 14:35 UTC10m
2026-04-26 N72695 - Apr 26, 17:45 UTCApr 26, 17:55 UTC10m
2026-04-26 N72695 SUS → SUS Apr 26, 16:10 UTCApr 26, 16:25 UTC15m
2026-04-25 N72695 - Apr 25, 14:30 UTCApr 25, 14:55 UTC25m
2026-04-23 N72695 - Apr 23, 18:15 UTCApr 23, 19:50 UTC1h 35m
2026-04-23 N72695 - Apr 23, 14:35 UTCApr 23, 14:50 UTC15m
2026-04-20 N72695 SUS → SUS Apr 20, 19:25 UTCApr 20, 19:35 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 N72695 page for operator, model, and routing details .

Mode-S A9BD87 frequently asked

What is Mode-S code A9BD87?
A9BD87 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N72695.
Where is Mode-S A9BD87 registered?
Mode-S code A9BD87 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 A9BD87 broadcasting right now?
No active broadcast right now. Last signal was 14h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A9BD87, octal 52336607, decimal 11,124,103.
What flights does A9BD87 operate?
Mode-S A9BD87 has broadcast 1 distinct callsign, including N72695.